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Finding the Fourth Proportional to 332,519.58, 498,978.09 and 122,178.78

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Solution

The fourth proportional to 332,519.58, 498,978.09 and 122,178.78 is: 183,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,519.58 : 498,978.09 = 122,178.78 : x
  2. Step 2: Convert to fraction form
    332,519.58/498,978.09 = 122,178.78/x
  3. Step 3: Cross multiply
    332,519.58x = 498,978.09 × 122,178.78
  4. Step 4: Simplify right side
    332,519.58x = 60,964,534,282.93
  5. Step 5: Solve for x
    x = 60,964,534,282.93/332,519.58
  6. Step 6: Final answer
    x = 183,341.19

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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.