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Finding the Fourth Proportional to 61,166.88, 84,372.72 and 40,470.24

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Solution

The fourth proportional to 61,166.88, 84,372.72 and 40,470.24 is: 55,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,166.88 : 84,372.72 = 40,470.24 : x
  2. Step 2: Convert to fraction form
    61,166.88/84,372.72 = 40,470.24/x
  3. Step 3: Cross multiply
    61,166.88x = 84,372.72 × 40,470.24
  4. Step 4: Simplify right side
    61,166.88x = 3,414,584,227.85
  5. Step 5: Solve for x
    x = 3,414,584,227.85/61,166.88
  6. Step 6: Final answer
    x = 55,824.07

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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.