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Finding the Fourth Proportional to 54,315.10, 81,472.65 and 54,315.10

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Solution

The fourth proportional to 54,315.10, 81,472.65 and 54,315.10 is: 81,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.10 : 81,472.65 = 54,315.10 : x
  2. Step 2: Convert to fraction form
    54,315.10/81,472.65 = 54,315.10/x
  3. Step 3: Cross multiply
    54,315.10x = 81,472.65 × 54,315.10
  4. Step 4: Simplify right side
    54,315.10x = 4,425,195,132.02
  5. Step 5: Solve for x
    x = 4,425,195,132.02/54,315.10
  6. Step 6: Final answer
    x = 81,472.65

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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.