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Finding the Fourth Proportional to 187,145.88, 280,721.27 and 62,486.88

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Solution

The fourth proportional to 187,145.88, 280,721.27 and 62,486.88 is: 93,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,145.88 : 280,721.27 = 62,486.88 : x
  2. Step 2: Convert to fraction form
    187,145.88/280,721.27 = 62,486.88/x
  3. Step 3: Cross multiply
    187,145.88x = 280,721.27 × 62,486.88
  4. Step 4: Simplify right side
    187,145.88x = 17,541,396,311.94
  5. Step 5: Solve for x
    x = 17,541,396,311.94/187,145.88
  6. Step 6: Final answer
    x = 93,731.14

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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.