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Finding the Fourth Proportional to 360,676,336.73, 497,691,354.21 and 201,915,153.22

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Solution

The fourth proportional to 360,676,336.73, 497,691,354.21 and 201,915,153.22 is: 278,619,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,676,336.73 : 497,691,354.21 = 201,915,153.22 : x
  2. Step 2: Convert to fraction form
    360,676,336.73/497,691,354.21 = 201,915,153.22/x
  3. Step 3: Cross multiply
    360,676,336.73x = 497,691,354.21 × 201,915,153.22
  4. Step 4: Simplify right side
    360,676,336.73x = 100,491,426,041,446,368
  5. Step 5: Solve for x
    x = 100,491,426,041,446,368/360,676,336.73
  6. Step 6: Final answer
    x = 278,619,404.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.