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Finding the Fourth Proportional to 329,139.41, 454,209.75 and 178,236.41

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Solution

The fourth proportional to 329,139.41, 454,209.75 and 178,236.41 is: 245,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,139.41 : 454,209.75 = 178,236.41 : x
  2. Step 2: Convert to fraction form
    329,139.41/454,209.75 = 178,236.41/x
  3. Step 3: Cross multiply
    329,139.41x = 454,209.75 × 178,236.41
  4. Step 4: Simplify right side
    329,139.41x = 80,956,712,955.95
  5. Step 5: Solve for x
    x = 80,956,712,955.95/329,139.41
  6. Step 6: Final answer
    x = 245,964.82

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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.