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Finding the Fourth Proportional to 69,448, 95,840.12 and 42,575.04

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Solution

The fourth proportional to 69,448, 95,840.12 and 42,575.04 is: 58,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,448 : 95,840.12 = 42,575.04 : x
  2. Step 2: Convert to fraction form
    69,448/95,840.12 = 42,575.04/x
  3. Step 3: Cross multiply
    69,448x = 95,840.12 × 42,575.04
  4. Step 4: Simplify right side
    69,448x = 4,080,396,942.60
  5. Step 5: Solve for x
    x = 4,080,396,942.60/69,448
  6. Step 6: Final answer
    x = 58,754.71

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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.