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Finding the Fourth Proportional to 71,644.54, 98,864.88 and 44,785.78

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Solution

The fourth proportional to 71,644.54, 98,864.88 and 44,785.78 is: 61,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,644.54 : 98,864.88 = 44,785.78 : x
  2. Step 2: Convert to fraction form
    71,644.54/98,864.88 = 44,785.78/x
  3. Step 3: Cross multiply
    71,644.54x = 98,864.88 × 44,785.78
  4. Step 4: Simplify right side
    71,644.54x = 4,427,740,765.41
  5. Step 5: Solve for x
    x = 4,427,740,765.41/71,644.54
  6. Step 6: Final answer
    x = 61,801.51

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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.