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Finding the Fourth Proportional to 135,493.92, 186,972.24 and 75,058.92

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Solution

The fourth proportional to 135,493.92, 186,972.24 and 75,058.92 is: 103,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,493.92 : 186,972.24 = 75,058.92 : x
  2. Step 2: Convert to fraction form
    135,493.92/186,972.24 = 75,058.92/x
  3. Step 3: Cross multiply
    135,493.92x = 186,972.24 × 75,058.92
  4. Step 4: Simplify right side
    135,493.92x = 14,033,934,404.38
  5. Step 5: Solve for x
    x = 14,033,934,404.38/135,493.92
  6. Step 6: Final answer
    x = 103,576.12

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1.5x scale

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.