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Finding the Fourth Proportional to 99,611.85, 149,439.65 and 29,496.63

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Solution

The fourth proportional to 99,611.85, 149,439.65 and 29,496.63 is: 44,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,611.85 : 149,439.65 = 29,496.63 : x
  2. Step 2: Convert to fraction form
    99,611.85/149,439.65 = 29,496.63/x
  3. Step 3: Cross multiply
    99,611.85x = 149,439.65 × 29,496.63
  4. Step 4: Simplify right side
    99,611.85x = 4,407,965,915.90
  5. Step 5: Solve for x
    x = 4,407,965,915.90/99,611.85
  6. Step 6: Final answer
    x = 44,251.42

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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.