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Finding the Fourth Proportional to 227,578.60, 341,367.90 and 156,719.80

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Solution

The fourth proportional to 227,578.60, 341,367.90 and 156,719.80 is: 235,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,578.60 : 341,367.90 = 156,719.80 : x
  2. Step 2: Convert to fraction form
    227,578.60/341,367.90 = 156,719.80/x
  3. Step 3: Cross multiply
    227,578.60x = 341,367.90 × 156,719.80
  4. Step 4: Simplify right side
    227,578.60x = 53,499,109,014.42
  5. Step 5: Solve for x
    x = 53,499,109,014.42/227,578.60
  6. Step 6: Final answer
    x = 235,079.70

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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.