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Finding the Fourth Proportional to 329,257.68, 454,377.78 and 178,354.68

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Solution

The fourth proportional to 329,257.68, 454,377.78 and 178,354.68 is: 246,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,257.68 : 454,377.78 = 178,354.68 : x
  2. Step 2: Convert to fraction form
    329,257.68/454,377.78 = 178,354.68/x
  3. Step 3: Cross multiply
    329,257.68x = 454,377.78 × 178,354.68
  4. Step 4: Simplify right side
    329,257.68x = 81,040,403,551.01
  5. Step 5: Solve for x
    x = 81,040,403,551.01/329,257.68
  6. Step 6: Final answer
    x = 246,130.64

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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.