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Finding the Fourth Proportional to 78,251.67, 108,002.70 and 44,260.16

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Solution

The fourth proportional to 78,251.67, 108,002.70 and 44,260.16 is: 61,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,251.67 : 108,002.70 = 44,260.16 : x
  2. Step 2: Convert to fraction form
    78,251.67/108,002.70 = 44,260.16/x
  3. Step 3: Cross multiply
    78,251.67x = 108,002.70 × 44,260.16
  4. Step 4: Simplify right side
    78,251.67x = 4,780,216,242.42
  5. Step 5: Solve for x
    x = 4,780,216,242.42/78,251.67
  6. Step 6: Final answer
    x = 61,087.72

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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.