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Finding the Fourth Proportional to 54,510.60, 81,722.70 and 29,886.60

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Solution

The fourth proportional to 54,510.60, 81,722.70 and 29,886.60 is: 44,806.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,510.60 : 81,722.70 = 29,886.60 : x
  2. Step 2: Convert to fraction form
    54,510.60/81,722.70 = 29,886.60/x
  3. Step 3: Cross multiply
    54,510.60x = 81,722.70 × 29,886.60
  4. Step 4: Simplify right side
    54,510.60x = 2,442,413,645.82
  5. Step 5: Solve for x
    x = 2,442,413,645.82/54,510.60
  6. Step 6: Final answer
    x = 44,806.21

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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.