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Finding the Fourth Proportional to 100,594.27, 138,832.16 and 60,330.18

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Solution

The fourth proportional to 100,594.27, 138,832.16 and 60,330.18 is: 83,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,594.27 : 138,832.16 = 60,330.18 : x
  2. Step 2: Convert to fraction form
    100,594.27/138,832.16 = 60,330.18/x
  3. Step 3: Cross multiply
    100,594.27x = 138,832.16 × 60,330.18
  4. Step 4: Simplify right side
    100,594.27x = 8,375,769,353.41
  5. Step 5: Solve for x
    x = 8,375,769,353.41/100,594.27
  6. Step 6: Final answer
    x = 83,262.89

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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.