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Finding the Fourth Proportional to 139,553.46, 192,575.88 and 75,891.24

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Solution

The fourth proportional to 139,553.46, 192,575.88 and 75,891.24 is: 104,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,553.46 : 192,575.88 = 75,891.24 : x
  2. Step 2: Convert to fraction form
    139,553.46/192,575.88 = 75,891.24/x
  3. Step 3: Cross multiply
    139,553.46x = 192,575.88 × 75,891.24
  4. Step 4: Simplify right side
    139,553.46x = 14,614,822,327.29
  5. Step 5: Solve for x
    x = 14,614,822,327.29/139,553.46
  6. Step 6: Final answer
    x = 104,725.62

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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.