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Finding the Fourth Proportional to 147,863.60, 221,934.60 and 77,793.20

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Solution

The fourth proportional to 147,863.60, 221,934.60 and 77,793.20 is: 116,763.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,863.60 : 221,934.60 = 77,793.20 : x
  2. Step 2: Convert to fraction form
    147,863.60/221,934.60 = 77,793.20/x
  3. Step 3: Cross multiply
    147,863.60x = 221,934.60 × 77,793.20
  4. Step 4: Simplify right side
    147,863.60x = 17,265,002,724.72
  5. Step 5: Solve for x
    x = 17,265,002,724.72/147,863.60
  6. Step 6: Final answer
    x = 116,763.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.