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Finding the Fourth Proportional to 332,486.40, 498,794.40 and 132,772.80

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Solution

The fourth proportional to 332,486.40, 498,794.40 and 132,772.80 is: 199,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,486.40 : 498,794.40 = 132,772.80 : x
  2. Step 2: Convert to fraction form
    332,486.40/498,794.40 = 132,772.80/x
  3. Step 3: Cross multiply
    332,486.40x = 498,794.40 × 132,772.80
  4. Step 4: Simplify right side
    332,486.40x = 66,226,329,112.32
  5. Step 5: Solve for x
    x = 66,226,329,112.32/332,486.40
  6. Step 6: Final answer
    x = 199,185.08

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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.