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Finding the Fourth Proportional to 67,221.57, 100,798.32 and 37,631.46

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Solution

The fourth proportional to 67,221.57, 100,798.32 and 37,631.46 is: 56,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221.57 : 100,798.32 = 37,631.46 : x
  2. Step 2: Convert to fraction form
    67,221.57/100,798.32 = 37,631.46/x
  3. Step 3: Cross multiply
    67,221.57x = 100,798.32 × 37,631.46
  4. Step 4: Simplify right side
    67,221.57x = 3,793,187,947.15
  5. Step 5: Solve for x
    x = 3,793,187,947.15/67,221.57
  6. Step 6: Final answer
    x = 56,428.14

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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.