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Finding the Fourth Proportional to 125,924.16, 188,680.96 and 73,377.92

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Solution

The fourth proportional to 125,924.16, 188,680.96 and 73,377.92 is: 109,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,924.16 : 188,680.96 = 73,377.92 : x
  2. Step 2: Convert to fraction form
    125,924.16/188,680.96 = 73,377.92/x
  3. Step 3: Cross multiply
    125,924.16x = 188,680.96 × 73,377.92
  4. Step 4: Simplify right side
    125,924.16x = 13,845,016,388.40
  5. Step 5: Solve for x
    x = 13,845,016,388.40/125,924.16
  6. Step 6: Final answer
    x = 109,947.26

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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.