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Finding the Fourth Proportional to 99,693.49, 149,540.22 and 29,572.20

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Solution

The fourth proportional to 99,693.49, 149,540.22 and 29,572.20 is: 44,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693.49 : 149,540.22 = 29,572.20 : x
  2. Step 2: Convert to fraction form
    99,693.49/149,540.22 = 29,572.20/x
  3. Step 3: Cross multiply
    99,693.49x = 149,540.22 × 29,572.20
  4. Step 4: Simplify right side
    99,693.49x = 4,422,233,293.88
  5. Step 5: Solve for x
    x = 4,422,233,293.88/99,693.49
  6. Step 6: Final answer
    x = 44,358.30

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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.