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Finding the Fourth Proportional to 329,892.20, 494,622.30 and 130,092.20

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Solution

The fourth proportional to 329,892.20, 494,622.30 and 130,092.20 is: 195,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,892.20 : 494,622.30 = 130,092.20 : x
  2. Step 2: Convert to fraction form
    329,892.20/494,622.30 = 130,092.20/x
  3. Step 3: Cross multiply
    329,892.20x = 494,622.30 × 130,092.20
  4. Step 4: Simplify right side
    329,892.20x = 64,346,503,176.06
  5. Step 5: Solve for x
    x = 64,346,503,176.06/329,892.20
  6. Step 6: Final answer
    x = 195,053.12

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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.