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Finding the Fourth Proportional to 332,649.80, 498,974.70 and 122,260.40

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Solution

The fourth proportional to 332,649.80, 498,974.70 and 122,260.40 is: 183,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,649.80 : 498,974.70 = 122,260.40 : x
  2. Step 2: Convert to fraction form
    332,649.80/498,974.70 = 122,260.40/x
  3. Step 3: Cross multiply
    332,649.80x = 498,974.70 × 122,260.40
  4. Step 4: Simplify right side
    332,649.80x = 61,004,846,411.88
  5. Step 5: Solve for x
    x = 61,004,846,411.88/332,649.80
  6. Step 6: Final answer
    x = 183,390.60

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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.