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Finding the Fourth Proportional to 54,604.80, 75,427.20 and 52,531.20

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Solution

The fourth proportional to 54,604.80, 75,427.20 and 52,531.20 is: 72,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,604.80 : 75,427.20 = 52,531.20 : x
  2. Step 2: Convert to fraction form
    54,604.80/75,427.20 = 52,531.20/x
  3. Step 3: Cross multiply
    54,604.80x = 75,427.20 × 52,531.20
  4. Step 4: Simplify right side
    54,604.80x = 3,962,281,328.64
  5. Step 5: Solve for x
    x = 3,962,281,328.64/54,604.80
  6. Step 6: Final answer
    x = 72,562.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.