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Finding the Fourth Proportional to 106,081.25, 146,391.90 and 60,773.90

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Solution

The fourth proportional to 106,081.25, 146,391.90 and 60,773.90 is: 83,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,081.25 : 146,391.90 = 60,773.90 : x
  2. Step 2: Convert to fraction form
    106,081.25/146,391.90 = 60,773.90/x
  3. Step 3: Cross multiply
    106,081.25x = 146,391.90 × 60,773.90
  4. Step 4: Simplify right side
    106,081.25x = 8,896,805,959.45
  5. Step 5: Solve for x
    x = 8,896,805,959.45/106,081.25
  6. Step 6: Final answer
    x = 83,867.85

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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.