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Finding the Fourth Proportional to 54,948.80, 82,335.20 and 53,490.88

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Solution

The fourth proportional to 54,948.80, 82,335.20 and 53,490.88 is: 80,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,948.80 : 82,335.20 = 53,490.88 : x
  2. Step 2: Convert to fraction form
    54,948.80/82,335.20 = 53,490.88/x
  3. Step 3: Cross multiply
    54,948.80x = 82,335.20 × 53,490.88
  4. Step 4: Simplify right side
    54,948.80x = 4,404,182,302.98
  5. Step 5: Solve for x
    x = 4,404,182,302.98/54,948.80
  6. Step 6: Final answer
    x = 80,150.65

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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.