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Finding the Fourth Proportional to 135,901.96, 187,550.92 and 75,472.87

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Solution

The fourth proportional to 135,901.96, 187,550.92 and 75,472.87 is: 104,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,901.96 : 187,550.92 = 75,472.87 : x
  2. Step 2: Convert to fraction form
    135,901.96/187,550.92 = 75,472.87/x
  3. Step 3: Cross multiply
    135,901.96x = 187,550.92 × 75,472.87
  4. Step 4: Simplify right side
    135,901.96x = 14,155,006,203.54
  5. Step 5: Solve for x
    x = 14,155,006,203.54/135,901.96
  6. Step 6: Final answer
    x = 104,156.01

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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.