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Finding the Fourth Proportional to 97,418.40, 134,391.24 and 63,414.48

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Solution

The fourth proportional to 97,418.40, 134,391.24 and 63,414.48 is: 87,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,418.40 : 134,391.24 = 63,414.48 : x
  2. Step 2: Convert to fraction form
    97,418.40/134,391.24 = 63,414.48/x
  3. Step 3: Cross multiply
    97,418.40x = 134,391.24 × 63,414.48
  4. Step 4: Simplify right side
    97,418.40x = 8,522,350,601.16
  5. Step 5: Solve for x
    x = 8,522,350,601.16/97,418.40
  6. Step 6: Final answer
    x = 87,481.94

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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.