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Finding the Fourth Proportional to 86,098.56, 129,149.12 and 22,919.84

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Solution

The fourth proportional to 86,098.56, 129,149.12 and 22,919.84 is: 34,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,098.56 : 129,149.12 = 22,919.84 : x
  2. Step 2: Convert to fraction form
    86,098.56/129,149.12 = 22,919.84/x
  3. Step 3: Cross multiply
    86,098.56x = 129,149.12 × 22,919.84
  4. Step 4: Simplify right side
    86,098.56x = 2,960,077,166.54
  5. Step 5: Solve for x
    x = 2,960,077,166.54/86,098.56
  6. Step 6: Final answer
    x = 34,380.10

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1.5x scale

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.