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Finding the Fourth Proportional to 54,531.90, 81,797.85 and 54,531.90

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Solution

The fourth proportional to 54,531.90, 81,797.85 and 54,531.90 is: 81,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,531.90 : 81,797.85 = 54,531.90 : x
  2. Step 2: Convert to fraction form
    54,531.90/81,797.85 = 54,531.90/x
  3. Step 3: Cross multiply
    54,531.90x = 81,797.85 × 54,531.90
  4. Step 4: Simplify right side
    54,531.90x = 4,460,592,176.42
  5. Step 5: Solve for x
    x = 4,460,592,176.42/54,531.90
  6. Step 6: Final answer
    x = 81,797.85

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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.