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Finding the Fourth Proportional to 86,202.89, 129,303.90 and 22,160.96

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Solution

The fourth proportional to 86,202.89, 129,303.90 and 22,160.96 is: 33,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,202.89 : 129,303.90 = 22,160.96 : x
  2. Step 2: Convert to fraction form
    86,202.89/129,303.90 = 22,160.96/x
  3. Step 3: Cross multiply
    86,202.89x = 129,303.90 × 22,160.96
  4. Step 4: Simplify right side
    86,202.89x = 2,865,498,555.74
  5. Step 5: Solve for x
    x = 2,865,498,555.74/86,202.89
  6. Step 6: Final answer
    x = 33,241.33

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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.