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Finding the Fourth Proportional to 69,565.92, 95,646.72 and 61,941.12

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Solution

The fourth proportional to 69,565.92, 95,646.72 and 61,941.12 is: 85,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,565.92 : 95,646.72 = 61,941.12 : x
  2. Step 2: Convert to fraction form
    69,565.92/95,646.72 = 61,941.12/x
  3. Step 3: Cross multiply
    69,565.92x = 95,646.72 × 61,941.12
  4. Step 4: Simplify right side
    69,565.92x = 5,924,464,961.13
  5. Step 5: Solve for x
    x = 5,924,464,961.13/69,565.92
  6. Step 6: Final answer
    x = 85,163.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.