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Finding the Fourth Proportional to 99,650.78, 149,475.58 and 36,475.29

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Solution

The fourth proportional to 99,650.78, 149,475.58 and 36,475.29 is: 54,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.78 : 149,475.58 = 36,475.29 : x
  2. Step 2: Convert to fraction form
    99,650.78/149,475.58 = 36,475.29/x
  3. Step 3: Cross multiply
    99,650.78x = 149,475.58 × 36,475.29
  4. Step 4: Simplify right side
    99,650.78x = 5,452,164,616.83
  5. Step 5: Solve for x
    x = 5,452,164,616.83/99,650.78
  6. Step 6: Final answer
    x = 54,712.71

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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.