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Finding the Fourth Proportional to 78,107.62, 107,787.66 and 44,116.16

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Solution

The fourth proportional to 78,107.62, 107,787.66 and 44,116.16 is: 60,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,107.62 : 107,787.66 = 44,116.16 : x
  2. Step 2: Convert to fraction form
    78,107.62/107,787.66 = 44,116.16/x
  3. Step 3: Cross multiply
    78,107.62x = 107,787.66 × 44,116.16
  4. Step 4: Simplify right side
    78,107.62x = 4,755,177,654.59
  5. Step 5: Solve for x
    x = 4,755,177,654.59/78,107.62
  6. Step 6: Final answer
    x = 60,879.82

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1.5x scale

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.