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Finding the Fourth Proportional to 69,323.59, 95,456.85 and 57,178.93

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Solution

The fourth proportional to 69,323.59, 95,456.85 and 57,178.93 is: 78,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,323.59 : 95,456.85 = 57,178.93 : x
  2. Step 2: Convert to fraction form
    69,323.59/95,456.85 = 57,178.93/x
  3. Step 3: Cross multiply
    69,323.59x = 95,456.85 × 57,178.93
  4. Step 4: Simplify right side
    69,323.59x = 5,458,120,544.17
  5. Step 5: Solve for x
    x = 5,458,120,544.17/69,323.59
  6. Step 6: Final answer
    x = 78,733.96

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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.