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Finding the Fourth Proportional to 69,393.38, 95,764.60 and 42,550.68

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Solution

The fourth proportional to 69,393.38, 95,764.60 and 42,550.68 is: 58,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,393.38 : 95,764.60 = 42,550.68 : x
  2. Step 2: Convert to fraction form
    69,393.38/95,764.60 = 42,550.68/x
  3. Step 3: Cross multiply
    69,393.38x = 95,764.60 × 42,550.68
  4. Step 4: Simplify right side
    69,393.38x = 4,074,848,849.93
  5. Step 5: Solve for x
    x = 4,074,848,849.93/69,393.38
  6. Step 6: Final answer
    x = 58,721.00

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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.