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Finding the Fourth Proportional to 78,258.65, 108,002.28 and 44,267.15

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Solution

The fourth proportional to 78,258.65, 108,002.28 and 44,267.15 is: 61,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,258.65 : 108,002.28 = 44,267.15 : x
  2. Step 2: Convert to fraction form
    78,258.65/108,002.28 = 44,267.15/x
  3. Step 3: Cross multiply
    78,258.65x = 108,002.28 × 44,267.15
  4. Step 4: Simplify right side
    78,258.65x = 4,780,952,589.09
  5. Step 5: Solve for x
    x = 4,780,952,589.09/78,258.65
  6. Step 6: Final answer
    x = 61,091.69

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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.