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Finding the Fourth Proportional to 99,049.60, 148,574.40 and 89,027.20

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Solution

The fourth proportional to 99,049.60, 148,574.40 and 89,027.20 is: 133,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,049.60 : 148,574.40 = 89,027.20 : x
  2. Step 2: Convert to fraction form
    99,049.60/148,574.40 = 89,027.20/x
  3. Step 3: Cross multiply
    99,049.60x = 148,574.40 × 89,027.20
  4. Step 4: Simplify right side
    99,049.60x = 13,227,162,823.68
  5. Step 5: Solve for x
    x = 13,227,162,823.68/99,049.60
  6. Step 6: Final answer
    x = 133,540.80

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1.5x scale

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.