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Finding the Fourth Proportional to 243,559.92, 335,922.48 and 156,353.52

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Solution

The fourth proportional to 243,559.92, 335,922.48 and 156,353.52 is: 215,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,559.92 : 335,922.48 = 156,353.52 : x
  2. Step 2: Convert to fraction form
    243,559.92/335,922.48 = 156,353.52/x
  3. Step 3: Cross multiply
    243,559.92x = 335,922.48 × 156,353.52
  4. Step 4: Simplify right side
    243,559.92x = 52,522,662,195.13
  5. Step 5: Solve for x
    x = 52,522,662,195.13/243,559.92
  6. Step 6: Final answer
    x = 215,645.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.