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Finding the Fourth Proportional to 108,387.84, 162,470.16 and 61,541.76

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Solution

The fourth proportional to 108,387.84, 162,470.16 and 61,541.76 is: 92,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,387.84 : 162,470.16 = 61,541.76 : x
  2. Step 2: Convert to fraction form
    108,387.84/162,470.16 = 61,541.76/x
  3. Step 3: Cross multiply
    108,387.84x = 162,470.16 × 61,541.76
  4. Step 4: Simplify right side
    108,387.84x = 9,998,699,593.88
  5. Step 5: Solve for x
    x = 9,998,699,593.88/108,387.84
  6. Step 6: Final answer
    x = 92,249.27

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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.