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Finding the Fourth Proportional to 329,545.68, 494,141.28 and 104,845.20

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Solution

The fourth proportional to 329,545.68, 494,141.28 and 104,845.20 is: 157,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,545.68 : 494,141.28 = 104,845.20 : x
  2. Step 2: Convert to fraction form
    329,545.68/494,141.28 = 104,845.20/x
  3. Step 3: Cross multiply
    329,545.68x = 494,141.28 × 104,845.20
  4. Step 4: Simplify right side
    329,545.68x = 51,808,341,329.86
  5. Step 5: Solve for x
    x = 51,808,341,329.86/329,545.68
  6. Step 6: Final answer
    x = 157,211.41

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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.