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Finding the Fourth Proportional to 89,063.82, 133,611.12 and 29,905.20

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Solution

The fourth proportional to 89,063.82, 133,611.12 and 29,905.20 is: 44,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,063.82 : 133,611.12 = 29,905.20 : x
  2. Step 2: Convert to fraction form
    89,063.82/133,611.12 = 29,905.20/x
  3. Step 3: Cross multiply
    89,063.82x = 133,611.12 × 29,905.20
  4. Step 4: Simplify right side
    89,063.82x = 3,995,667,265.82
  5. Step 5: Solve for x
    x = 3,995,667,265.82/89,063.82
  6. Step 6: Final answer
    x = 44,862.97

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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.