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Finding the Fourth Proportional to 125,165.72, 187,767.42 and 36,407.54

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Solution

The fourth proportional to 125,165.72, 187,767.42 and 36,407.54 is: 54,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.72 : 187,767.42 = 36,407.54 : x
  2. Step 2: Convert to fraction form
    125,165.72/187,767.42 = 36,407.54/x
  3. Step 3: Cross multiply
    125,165.72x = 187,767.42 × 36,407.54
  4. Step 4: Simplify right side
    125,165.72x = 6,836,150,187.24
  5. Step 5: Solve for x
    x = 6,836,150,187.24/125,165.72
  6. Step 6: Final answer
    x = 54,616.79

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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.