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Finding the Fourth Proportional to 99,149.67, 136,775.82 and 63,301.99

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Solution

The fourth proportional to 99,149.67, 136,775.82 and 63,301.99 is: 87,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,149.67 : 136,775.82 = 63,301.99 : x
  2. Step 2: Convert to fraction form
    99,149.67/136,775.82 = 63,301.99/x
  3. Step 3: Cross multiply
    99,149.67x = 136,775.82 × 63,301.99
  4. Step 4: Simplify right side
    99,149.67x = 8,658,181,589.88
  5. Step 5: Solve for x
    x = 8,658,181,589.88/99,149.67
  6. Step 6: Final answer
    x = 87,324.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.