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Finding the Fourth Proportional to 108,549.20, 162,799.20 and 38,428.52

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Solution

The fourth proportional to 108,549.20, 162,799.20 and 38,428.52 is: 57,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,549.20 : 162,799.20 = 38,428.52 : x
  2. Step 2: Convert to fraction form
    108,549.20/162,799.20 = 38,428.52/x
  3. Step 3: Cross multiply
    108,549.20x = 162,799.20 × 38,428.52
  4. Step 4: Simplify right side
    108,549.20x = 6,256,132,313.18
  5. Step 5: Solve for x
    x = 6,256,132,313.18/108,549.20
  6. Step 6: Final answer
    x = 57,634.07

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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.