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Finding the Fourth Proportional to 86,200.89, 129,300.90 and 22,158.96

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Solution

The fourth proportional to 86,200.89, 129,300.90 and 22,158.96 is: 33,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,200.89 : 129,300.90 = 22,158.96 : x
  2. Step 2: Convert to fraction form
    86,200.89/129,300.90 = 22,158.96/x
  3. Step 3: Cross multiply
    86,200.89x = 129,300.90 × 22,158.96
  4. Step 4: Simplify right side
    86,200.89x = 2,865,173,471.06
  5. Step 5: Solve for x
    x = 2,865,173,471.06/86,200.89
  6. Step 6: Final answer
    x = 33,238.33

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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.