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Finding the Fourth Proportional to 168,655.97, 252,983.96 and 68,863.16

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Solution

The fourth proportional to 168,655.97, 252,983.96 and 68,863.16 is: 103,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,655.97 : 252,983.96 = 68,863.16 : x
  2. Step 2: Convert to fraction form
    168,655.97/252,983.96 = 68,863.16/x
  3. Step 3: Cross multiply
    168,655.97x = 252,983.96 × 68,863.16
  4. Step 4: Simplify right side
    168,655.97x = 17,421,275,461.29
  5. Step 5: Solve for x
    x = 17,421,275,461.29/168,655.97
  6. Step 6: Final answer
    x = 103,294.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.