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Finding the Fourth Proportional to 502,487.88, 753,736.14 and 147,507.72

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Solution

The fourth proportional to 502,487.88, 753,736.14 and 147,507.72 is: 221,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,487.88 : 753,736.14 = 147,507.72 : x
  2. Step 2: Convert to fraction form
    502,487.88/753,736.14 = 147,507.72/x
  3. Step 3: Cross multiply
    502,487.88x = 753,736.14 × 147,507.72
  4. Step 4: Simplify right side
    502,487.88x = 111,181,899,493.00
  5. Step 5: Solve for x
    x = 111,181,899,493.00/502,487.88
  6. Step 6: Final answer
    x = 221,262.85

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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.