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Finding the Fourth Proportional to 240,875.71, 361,319.42 and 80,953.97

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Solution

The fourth proportional to 240,875.71, 361,319.42 and 80,953.97 is: 121,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,875.71 : 361,319.42 = 80,953.97 : x
  2. Step 2: Convert to fraction form
    240,875.71/361,319.42 = 80,953.97/x
  3. Step 3: Cross multiply
    240,875.71x = 361,319.42 × 80,953.97
  4. Step 4: Simplify right side
    240,875.71x = 29,250,241,487.10
  5. Step 5: Solve for x
    x = 29,250,241,487.10/240,875.71
  6. Step 6: Final answer
    x = 121,432.92

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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.