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Finding the Fourth Proportional to 227,920.60, 342,188.70 and 133,247.80

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Solution

The fourth proportional to 227,920.60, 342,188.70 and 133,247.80 is: 200,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,920.60 : 342,188.70 = 133,247.80 : x
  2. Step 2: Convert to fraction form
    227,920.60/342,188.70 = 133,247.80/x
  3. Step 3: Cross multiply
    227,920.60x = 342,188.70 × 133,247.80
  4. Step 4: Simplify right side
    227,920.60x = 45,595,891,459.86
  5. Step 5: Solve for x
    x = 45,595,891,459.86/227,920.60
  6. Step 6: Final answer
    x = 200,051.65

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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.