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Finding the Fourth Proportional to 321,792.39, 444,076.56 and 178,565.76

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Solution

The fourth proportional to 321,792.39, 444,076.56 and 178,565.76 is: 246,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,792.39 : 444,076.56 = 178,565.76 : x
  2. Step 2: Convert to fraction form
    321,792.39/444,076.56 = 178,565.76/x
  3. Step 3: Cross multiply
    321,792.39x = 444,076.56 × 178,565.76
  4. Step 4: Simplify right side
    321,792.39x = 79,296,868,434.59
  5. Step 5: Solve for x
    x = 79,296,868,434.59/321,792.39
  6. Step 6: Final answer
    x = 246,422.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.