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Finding the Fourth Proportional to 107,611.85, 161,270.11 and 68,098.23

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Solution

The fourth proportional to 107,611.85, 161,270.11 and 68,098.23 is: 102,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,611.85 : 161,270.11 = 68,098.23 : x
  2. Step 2: Convert to fraction form
    107,611.85/161,270.11 = 68,098.23/x
  3. Step 3: Cross multiply
    107,611.85x = 161,270.11 × 68,098.23
  4. Step 4: Simplify right side
    107,611.85x = 10,982,208,872.66
  5. Step 5: Solve for x
    x = 10,982,208,872.66/107,611.85
  6. Step 6: Final answer
    x = 102,053.90

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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.