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Finding the Fourth Proportional to 108,471.62, 162,470.54 and 45,099.59

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Solution

The fourth proportional to 108,471.62, 162,470.54 and 45,099.59 is: 67,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,471.62 : 162,470.54 = 45,099.59 : x
  2. Step 2: Convert to fraction form
    108,471.62/162,470.54 = 45,099.59/x
  3. Step 3: Cross multiply
    108,471.62x = 162,470.54 × 45,099.59
  4. Step 4: Simplify right side
    108,471.62x = 7,327,354,041.47
  5. Step 5: Solve for x
    x = 7,327,354,041.47/108,471.62
  6. Step 6: Final answer
    x = 67,550.88

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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.