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Finding the Fourth Proportional to 113,354.20, 169,836.90 and 54,062.20

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Solution

The fourth proportional to 113,354.20, 169,836.90 and 54,062.20 is: 81,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,354.20 : 169,836.90 = 54,062.20 : x
  2. Step 2: Convert to fraction form
    113,354.20/169,836.90 = 54,062.20/x
  3. Step 3: Cross multiply
    113,354.20x = 169,836.90 × 54,062.20
  4. Step 4: Simplify right side
    113,354.20x = 9,181,756,455.18
  5. Step 5: Solve for x
    x = 9,181,756,455.18/113,354.20
  6. Step 6: Final answer
    x = 81,000.58

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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.