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Finding the Fourth Proportional to 119,330.11, 164,679.78 and 65,619.24

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Solution

The fourth proportional to 119,330.11, 164,679.78 and 65,619.24 is: 90,556.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,330.11 : 164,679.78 = 65,619.24 : x
  2. Step 2: Convert to fraction form
    119,330.11/164,679.78 = 65,619.24/x
  3. Step 3: Cross multiply
    119,330.11x = 164,679.78 × 65,619.24
  4. Step 4: Simplify right side
    119,330.11x = 10,806,162,006.97
  5. Step 5: Solve for x
    x = 10,806,162,006.97/119,330.11
  6. Step 6: Final answer
    x = 90,556.88

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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.