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Finding the Fourth Proportional to 392,094.65, 588,129.82 and 111,611.90

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Solution

The fourth proportional to 392,094.65, 588,129.82 and 111,611.90 is: 167,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,094.65 : 588,129.82 = 111,611.90 : x
  2. Step 2: Convert to fraction form
    392,094.65/588,129.82 = 111,611.90/x
  3. Step 3: Cross multiply
    392,094.65x = 588,129.82 × 111,611.90
  4. Step 4: Simplify right side
    392,094.65x = 65,642,286,656.86
  5. Step 5: Solve for x
    x = 65,642,286,656.86/392,094.65
  6. Step 6: Final answer
    x = 167,414.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.