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Finding the Fourth Proportional to 57,229.20, 85,843.80 and 48,772.80

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Solution

The fourth proportional to 57,229.20, 85,843.80 and 48,772.80 is: 73,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.20 : 85,843.80 = 48,772.80 : x
  2. Step 2: Convert to fraction form
    57,229.20/85,843.80 = 48,772.80/x
  3. Step 3: Cross multiply
    57,229.20x = 85,843.80 × 48,772.80
  4. Step 4: Simplify right side
    57,229.20x = 4,186,842,488.64
  5. Step 5: Solve for x
    x = 4,186,842,488.64/57,229.20
  6. Step 6: Final answer
    x = 73,159.20

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1.5x scale

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.