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Finding the Fourth Proportional to 113,761.71, 170,679.06 and 54,601.54

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Solution

The fourth proportional to 113,761.71, 170,679.06 and 54,601.54 is: 81,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,761.71 : 170,679.06 = 54,601.54 : x
  2. Step 2: Convert to fraction form
    113,761.71/170,679.06 = 54,601.54/x
  3. Step 3: Cross multiply
    113,761.71x = 170,679.06 × 54,601.54
  4. Step 4: Simplify right side
    113,761.71x = 9,319,339,095.05
  5. Step 5: Solve for x
    x = 9,319,339,095.05/113,761.71
  6. Step 6: Final answer
    x = 81,919.82

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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.