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Finding the Fourth Proportional to 81,459.96, 122,209.05 and 25,297.17

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Solution

The fourth proportional to 81,459.96, 122,209.05 and 25,297.17 is: 37,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459.96 : 122,209.05 = 25,297.17 : x
  2. Step 2: Convert to fraction form
    81,459.96/122,209.05 = 25,297.17/x
  3. Step 3: Cross multiply
    81,459.96x = 122,209.05 × 25,297.17
  4. Step 4: Simplify right side
    81,459.96x = 3,091,543,113.39
  5. Step 5: Solve for x
    x = 3,091,543,113.39/81,459.96
  6. Step 6: Final answer
    x = 37,951.69

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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.