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Finding the Fourth Proportional to 125,234.88, 187,880.68 and 71,951.46

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Solution

The fourth proportional to 125,234.88, 187,880.68 and 71,951.46 is: 107,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,234.88 : 187,880.68 = 71,951.46 : x
  2. Step 2: Convert to fraction form
    125,234.88/187,880.68 = 71,951.46/x
  3. Step 3: Cross multiply
    125,234.88x = 187,880.68 × 71,951.46
  4. Step 4: Simplify right side
    125,234.88x = 13,518,289,231.79
  5. Step 5: Solve for x
    x = 13,518,289,231.79/125,234.88
  6. Step 6: Final answer
    x = 107,943.48

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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.