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Finding the Fourth Proportional to 206,876,706,715.15, 310,315,060,072.70 and 206,876,706,715.15

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Solution

The fourth proportional to 206,876,706,715.15, 310,315,060,072.70 and 206,876,706,715.15 is: 310,315,060,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,876,706,715.15 : 310,315,060,072.70 = 206,876,706,715.15 : x
  2. Step 2: Convert to fraction form
    206,876,706,715.15/310,315,060,072.70 = 206,876,706,715.15/x
  3. Step 3: Cross multiply
    206,876,706,715.15x = 310,315,060,072.70 × 206,876,706,715.15
  4. Step 4: Simplify right side
    206,876,706,715.15x = 64,196,957,671,954,115,985,408
  5. Step 5: Solve for x
    x = 64,196,957,671,954,115,985,408/206,876,706,715.15
  6. Step 6: Final answer
    x = 310,315,060,072.70

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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.