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Finding the Fourth Proportional to 332,435.20, 498,652.80 and 155,288.20

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Solution

The fourth proportional to 332,435.20, 498,652.80 and 155,288.20 is: 232,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,435.20 : 498,652.80 = 155,288.20 : x
  2. Step 2: Convert to fraction form
    332,435.20/498,652.80 = 155,288.20/x
  3. Step 3: Cross multiply
    332,435.20x = 498,652.80 × 155,288.20
  4. Step 4: Simplify right side
    332,435.20x = 77,434,895,736.96
  5. Step 5: Solve for x
    x = 77,434,895,736.96/332,435.20
  6. Step 6: Final answer
    x = 232,932.30

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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.