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Finding the Fourth Proportional to 217,793.31, 326,620.85 and 70,014.75

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Solution

The fourth proportional to 217,793.31, 326,620.85 and 70,014.75 is: 104,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,793.31 : 326,620.85 = 70,014.75 : x
  2. Step 2: Convert to fraction form
    217,793.31/326,620.85 = 70,014.75/x
  3. Step 3: Cross multiply
    217,793.31x = 326,620.85 × 70,014.75
  4. Step 4: Simplify right side
    217,793.31x = 22,868,276,807.46
  5. Step 5: Solve for x
    x = 22,868,276,807.46/217,793.31
  6. Step 6: Final answer
    x = 104,999.90

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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.