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Finding the Fourth Proportional to 125,432.64, 173,099.52 and 68,843.52

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Solution

The fourth proportional to 125,432.64, 173,099.52 and 68,843.52 is: 95,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,432.64 : 173,099.52 = 68,843.52 : x
  2. Step 2: Convert to fraction form
    125,432.64/173,099.52 = 68,843.52/x
  3. Step 3: Cross multiply
    125,432.64x = 173,099.52 × 68,843.52
  4. Step 4: Simplify right side
    125,432.64x = 11,916,780,267.11
  5. Step 5: Solve for x
    x = 11,916,780,267.11/125,432.64
  6. Step 6: Final answer
    x = 95,005.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.