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Finding the Fourth Proportional to 109,207.82, 150,683.49 and 63,876.93

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Solution

The fourth proportional to 109,207.82, 150,683.49 and 63,876.93 is: 88,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,207.82 : 150,683.49 = 63,876.93 : x
  2. Step 2: Convert to fraction form
    109,207.82/150,683.49 = 63,876.93/x
  3. Step 3: Cross multiply
    109,207.82x = 150,683.49 × 63,876.93
  4. Step 4: Simplify right side
    109,207.82x = 9,625,198,742.89
  5. Step 5: Solve for x
    x = 9,625,198,742.89/109,207.82
  6. Step 6: Final answer
    x = 88,136.54

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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.