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Finding the Fourth Proportional to 158,553.20, 218,640.08 and 110,789.12

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Solution

The fourth proportional to 158,553.20, 218,640.08 and 110,789.12 is: 152,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,553.20 : 218,640.08 = 110,789.12 : x
  2. Step 2: Convert to fraction form
    158,553.20/218,640.08 = 110,789.12/x
  3. Step 3: Cross multiply
    158,553.20x = 218,640.08 × 110,789.12
  4. Step 4: Simplify right side
    158,553.20x = 24,222,942,059.93
  5. Step 5: Solve for x
    x = 24,222,942,059.93/158,553.20
  6. Step 6: Final answer
    x = 152,774.85

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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.