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Finding the Fourth Proportional to 69,139.73, 95,424.73 and 40,064.02

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Solution

The fourth proportional to 69,139.73, 95,424.73 and 40,064.02 is: 55,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,139.73 : 95,424.73 = 40,064.02 : x
  2. Step 2: Convert to fraction form
    69,139.73/95,424.73 = 40,064.02/x
  3. Step 3: Cross multiply
    69,139.73x = 95,424.73 × 40,064.02
  4. Step 4: Simplify right side
    69,139.73x = 3,823,098,177.85
  5. Step 5: Solve for x
    x = 3,823,098,177.85/69,139.73
  6. Step 6: Final answer
    x = 55,295.25

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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.