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Finding the Fourth Proportional to 125,468.43, 187,956.60 and 72,767.22

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Solution

The fourth proportional to 125,468.43, 187,956.60 and 72,767.22 is: 109,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,468.43 : 187,956.60 = 72,767.22 : x
  2. Step 2: Convert to fraction form
    125,468.43/187,956.60 = 72,767.22/x
  3. Step 3: Cross multiply
    125,468.43x = 187,956.60 × 72,767.22
  4. Step 4: Simplify right side
    125,468.43x = 13,677,079,262.65
  5. Step 5: Solve for x
    x = 13,677,079,262.65/125,468.43
  6. Step 6: Final answer
    x = 109,008.13

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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.