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Finding the Fourth Proportional to 502,997.81, 754,496.89 and 123,925.91

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Solution

The fourth proportional to 502,997.81, 754,496.89 and 123,925.91 is: 185,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,997.81 : 754,496.89 = 123,925.91 : x
  2. Step 2: Convert to fraction form
    502,997.81/754,496.89 = 123,925.91/x
  3. Step 3: Cross multiply
    502,997.81x = 754,496.89 × 123,925.91
  4. Step 4: Simplify right side
    502,997.81x = 93,501,709,603.12
  5. Step 5: Solve for x
    x = 93,501,709,603.12/502,997.81
  6. Step 6: Final answer
    x = 185,888.90

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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.