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Finding the Fourth Proportional to 329,411.56, 454,588.20 and 178,508.56

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Solution

The fourth proportional to 329,411.56, 454,588.20 and 178,508.56 is: 246,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,411.56 : 454,588.20 = 178,508.56 : x
  2. Step 2: Convert to fraction form
    329,411.56/454,588.20 = 178,508.56/x
  3. Step 3: Cross multiply
    329,411.56x = 454,588.20 × 178,508.56
  4. Step 4: Simplify right side
    329,411.56x = 81,147,884,974.99
  5. Step 5: Solve for x
    x = 81,147,884,974.99/329,411.56
  6. Step 6: Final answer
    x = 246,341.95

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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.