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Finding the Fourth Proportional to 86,099.61, 129,159.09 and 22,922.20

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Solution

The fourth proportional to 86,099.61, 129,159.09 and 22,922.20 is: 34,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,099.61 : 129,159.09 = 22,922.20 : x
  2. Step 2: Convert to fraction form
    86,099.61/129,159.09 = 22,922.20/x
  3. Step 3: Cross multiply
    86,099.61x = 129,159.09 × 22,922.20
  4. Step 4: Simplify right side
    86,099.61x = 2,960,610,169.90
  5. Step 5: Solve for x
    x = 2,960,610,169.90/86,099.61
  6. Step 6: Final answer
    x = 34,385.87

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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.