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Finding the Fourth Proportional to 99,301.20, 148,912.20 and 32,722.80

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Solution

The fourth proportional to 99,301.20, 148,912.20 and 32,722.80 is: 49,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,301.20 : 148,912.20 = 32,722.80 : x
  2. Step 2: Convert to fraction form
    99,301.20/148,912.20 = 32,722.80/x
  3. Step 3: Cross multiply
    99,301.20x = 148,912.20 × 32,722.80
  4. Step 4: Simplify right side
    99,301.20x = 4,872,824,138.16
  5. Step 5: Solve for x
    x = 4,872,824,138.16/99,301.20
  6. Step 6: Final answer
    x = 49,071.15

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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.