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Finding the Fourth Proportional to 119,616.28, 165,069.62 and 65,900.04

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Solution

The fourth proportional to 119,616.28, 165,069.62 and 65,900.04 is: 90,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,616.28 : 165,069.62 = 65,900.04 : x
  2. Step 2: Convert to fraction form
    119,616.28/165,069.62 = 65,900.04/x
  3. Step 3: Cross multiply
    119,616.28x = 165,069.62 × 65,900.04
  4. Step 4: Simplify right side
    119,616.28x = 10,878,094,560.78
  5. Step 5: Solve for x
    x = 10,878,094,560.78/119,616.28
  6. Step 6: Final answer
    x = 90,941.59

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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.