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Finding the Fourth Proportional to 86,564.62, 119,192.71 and 73,789.17

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Solution

The fourth proportional to 86,564.62, 119,192.71 and 73,789.17 is: 101,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,564.62 : 119,192.71 = 73,789.17 : x
  2. Step 2: Convert to fraction form
    86,564.62/119,192.71 = 73,789.17/x
  3. Step 3: Cross multiply
    86,564.62x = 119,192.71 × 73,789.17
  4. Step 4: Simplify right side
    86,564.62x = 8,795,131,140.95
  5. Step 5: Solve for x
    x = 8,795,131,140.95/86,564.62
  6. Step 6: Final answer
    x = 101,601.91

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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.