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Finding the Fourth Proportional to 313,149.61, 469,740.21 and 88,526.17

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Solution

The fourth proportional to 313,149.61, 469,740.21 and 88,526.17 is: 132,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,149.61 : 469,740.21 = 88,526.17 : x
  2. Step 2: Convert to fraction form
    313,149.61/469,740.21 = 88,526.17/x
  3. Step 3: Cross multiply
    313,149.61x = 469,740.21 × 88,526.17
  4. Step 4: Simplify right side
    313,149.61x = 41,584,301,686.30
  5. Step 5: Solve for x
    x = 41,584,301,686.30/313,149.61
  6. Step 6: Final answer
    x = 132,793.72

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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.