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Finding the Fourth Proportional to 98,189.97, 135,494.10 and 55,167.09

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Solution

The fourth proportional to 98,189.97, 135,494.10 and 55,167.09 is: 76,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,189.97 : 135,494.10 = 55,167.09 : x
  2. Step 2: Convert to fraction form
    98,189.97/135,494.10 = 55,167.09/x
  3. Step 3: Cross multiply
    98,189.97x = 135,494.10 × 55,167.09
  4. Step 4: Simplify right side
    98,189.97x = 7,474,815,209.17
  5. Step 5: Solve for x
    x = 7,474,815,209.17/98,189.97
  6. Step 6: Final answer
    x = 76,126.06

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1.5x scale

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.