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Finding the Fourth Proportional to 329,061.30, 493,640.55 and 104,442.90

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Solution

The fourth proportional to 329,061.30, 493,640.55 and 104,442.90 is: 156,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,061.30 : 493,640.55 = 104,442.90 : x
  2. Step 2: Convert to fraction form
    329,061.30/493,640.55 = 104,442.90/x
  3. Step 3: Cross multiply
    329,061.30x = 493,640.55 × 104,442.90
  4. Step 4: Simplify right side
    329,061.30x = 51,557,250,599.60
  5. Step 5: Solve for x
    x = 51,557,250,599.60/329,061.30
  6. Step 6: Final answer
    x = 156,679.78

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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.