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Finding the Fourth Proportional to 230,734.80, 346,102.20 and 106,318.80

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Solution

The fourth proportional to 230,734.80, 346,102.20 and 106,318.80 is: 159,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,734.80 : 346,102.20 = 106,318.80 : x
  2. Step 2: Convert to fraction form
    230,734.80/346,102.20 = 106,318.80/x
  3. Step 3: Cross multiply
    230,734.80x = 346,102.20 × 106,318.80
  4. Step 4: Simplify right side
    230,734.80x = 36,797,170,581.36
  5. Step 5: Solve for x
    x = 36,797,170,581.36/230,734.80
  6. Step 6: Final answer
    x = 159,478.20

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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.