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Finding the Fourth Proportional to 125,018.56, 187,276.56 and 58,366.72

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Solution

The fourth proportional to 125,018.56, 187,276.56 and 58,366.72 is: 87,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,018.56 : 187,276.56 = 58,366.72 : x
  2. Step 2: Convert to fraction form
    125,018.56/187,276.56 = 58,366.72/x
  3. Step 3: Cross multiply
    125,018.56x = 187,276.56 × 58,366.72
  4. Step 4: Simplify right side
    125,018.56x = 10,930,718,540.08
  5. Step 5: Solve for x
    x = 10,930,718,540.08/125,018.56
  6. Step 6: Final answer
    x = 87,432.77

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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.