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Finding the Fourth Proportional to 227,628.70, 341,443.05 and 156,769.90

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Solution

The fourth proportional to 227,628.70, 341,443.05 and 156,769.90 is: 235,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,628.70 : 341,443.05 = 156,769.90 : x
  2. Step 2: Convert to fraction form
    227,628.70/341,443.05 = 156,769.90/x
  3. Step 3: Cross multiply
    227,628.70x = 341,443.05 × 156,769.90
  4. Step 4: Simplify right side
    227,628.70x = 53,527,992,804.20
  5. Step 5: Solve for x
    x = 53,527,992,804.20/227,628.70
  6. Step 6: Final answer
    x = 235,154.85

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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.