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Finding the Fourth Proportional to 115,819.20, 173,728.80 and 41,023.80

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Solution

The fourth proportional to 115,819.20, 173,728.80 and 41,023.80 is: 61,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,819.20 : 173,728.80 = 41,023.80 : x
  2. Step 2: Convert to fraction form
    115,819.20/173,728.80 = 41,023.80/x
  3. Step 3: Cross multiply
    115,819.20x = 173,728.80 × 41,023.80
  4. Step 4: Simplify right side
    115,819.20x = 7,127,015,545.44
  5. Step 5: Solve for x
    x = 7,127,015,545.44/115,819.20
  6. Step 6: Final answer
    x = 61,535.70

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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.