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Finding the Fourth Proportional to 206,876,706,811.05, 310,315,060,216.57 and 206,876,706,811.05

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Solution

The fourth proportional to 206,876,706,811.05, 310,315,060,216.57 and 206,876,706,811.05 is: 310,315,060,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,876,706,811.05 : 310,315,060,216.57 = 206,876,706,811.05 : x
  2. Step 2: Convert to fraction form
    206,876,706,811.05/310,315,060,216.57 = 206,876,706,811.05/x
  3. Step 3: Cross multiply
    206,876,706,811.05x = 310,315,060,216.57 × 206,876,706,811.05
  4. Step 4: Simplify right side
    206,876,706,811.05x = 64,196,957,731,476,675,231,744
  5. Step 5: Solve for x
    x = 64,196,957,731,476,675,231,744/206,876,706,811.05
  6. Step 6: Final answer
    x = 310,315,060,216.57

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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.