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Finding the Fourth Proportional to 206,876,706,720.90, 310,315,060,081.34 and 206,876,706,720.90

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Solution

The fourth proportional to 206,876,706,720.90, 310,315,060,081.34 and 206,876,706,720.90 is: 310,315,060,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,876,706,720.90 : 310,315,060,081.34 = 206,876,706,720.90 : x
  2. Step 2: Convert to fraction form
    206,876,706,720.90/310,315,060,081.34 = 206,876,706,720.90/x
  3. Step 3: Cross multiply
    206,876,706,720.90x = 310,315,060,081.34 × 206,876,706,720.90
  4. Step 4: Simplify right side
    206,876,706,720.90x = 64,196,957,675,525,842,665,472
  5. Step 5: Solve for x
    x = 64,196,957,675,525,842,665,472/206,876,706,720.90
  6. Step 6: Final answer
    x = 310,315,060,081.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.