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Finding the Fourth Proportional to 98,023.60, 146,949.12 and 38,900.80

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Solution

The fourth proportional to 98,023.60, 146,949.12 and 38,900.80 is: 58,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,023.60 : 146,949.12 = 38,900.80 : x
  2. Step 2: Convert to fraction form
    98,023.60/146,949.12 = 38,900.80/x
  3. Step 3: Cross multiply
    98,023.60x = 146,949.12 × 38,900.80
  4. Step 4: Simplify right side
    98,023.60x = 5,716,438,327.30
  5. Step 5: Solve for x
    x = 5,716,438,327.30/98,023.60
  6. Step 6: Final answer
    x = 58,316.96

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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.