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Finding the Fourth Proportional to 87,470.87, 120,700.46 and 49,232.39

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Solution

The fourth proportional to 87,470.87, 120,700.46 and 49,232.39 is: 67,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,470.87 : 120,700.46 = 49,232.39 : x
  2. Step 2: Convert to fraction form
    87,470.87/120,700.46 = 49,232.39/x
  3. Step 3: Cross multiply
    87,470.87x = 120,700.46 × 49,232.39
  4. Step 4: Simplify right side
    87,470.87x = 5,942,371,639.48
  5. Step 5: Solve for x
    x = 5,942,371,639.48/87,470.87
  6. Step 6: Final answer
    x = 67,935.44

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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.