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Finding the Fourth Proportional to 502,991,721.70, 754,487,404.98 and 134,517,097.22

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Solution

The fourth proportional to 502,991,721.70, 754,487,404.98 and 134,517,097.22 is: 201,775,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,991,721.70 : 754,487,404.98 = 134,517,097.22 : x
  2. Step 2: Convert to fraction form
    502,991,721.70/754,487,404.98 = 134,517,097.22/x
  3. Step 3: Cross multiply
    502,991,721.70x = 754,487,404.98 × 134,517,097.22
  4. Step 4: Simplify right side
    502,991,721.70x = 101,491,455,606,960,176
  5. Step 5: Solve for x
    x = 101,491,455,606,960,176/502,991,721.70
  6. Step 6: Final answer
    x = 201,775,598.34

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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.