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Finding the Fourth Proportional to 115,449.20, 173,197.20 and 65,553.20

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Solution

The fourth proportional to 115,449.20, 173,197.20 and 65,553.20 is: 98,343.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,449.20 : 173,197.20 = 65,553.20 : x
  2. Step 2: Convert to fraction form
    115,449.20/173,197.20 = 65,553.20/x
  3. Step 3: Cross multiply
    115,449.20x = 173,197.20 × 65,553.20
  4. Step 4: Simplify right side
    115,449.20x = 11,353,630,691.04
  5. Step 5: Solve for x
    x = 11,353,630,691.04/115,449.20
  6. Step 6: Final answer
    x = 98,343.09

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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.