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Finding the Fourth Proportional to 119,995.68, 165,589.74 and 66,277.92

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Solution

The fourth proportional to 119,995.68, 165,589.74 and 66,277.92 is: 91,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,995.68 : 165,589.74 = 66,277.92 : x
  2. Step 2: Convert to fraction form
    119,995.68/165,589.74 = 66,277.92/x
  3. Step 3: Cross multiply
    119,995.68x = 165,589.74 × 66,277.92
  4. Step 4: Simplify right side
    119,995.68x = 10,974,943,540.54
  5. Step 5: Solve for x
    x = 10,974,943,540.54/119,995.68
  6. Step 6: Final answer
    x = 91,461.16

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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.