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Finding the Fourth Proportional to 125,342.46, 187,724.04 and 75,312.27

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Solution

The fourth proportional to 125,342.46, 187,724.04 and 75,312.27 is: 112,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,342.46 : 187,724.04 = 75,312.27 : x
  2. Step 2: Convert to fraction form
    125,342.46/187,724.04 = 75,312.27/x
  3. Step 3: Cross multiply
    125,342.46x = 187,724.04 × 75,312.27
  4. Step 4: Simplify right side
    125,342.46x = 14,137,923,585.97
  5. Step 5: Solve for x
    x = 14,137,923,585.97/125,342.46
  6. Step 6: Final answer
    x = 112,794.37

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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.