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Finding the Fourth Proportional to 355,165.92, 490,125.96 and 194,021.04

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Solution

The fourth proportional to 355,165.92, 490,125.96 and 194,021.04 is: 267,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,165.92 : 490,125.96 = 194,021.04 : x
  2. Step 2: Convert to fraction form
    355,165.92/490,125.96 = 194,021.04/x
  3. Step 3: Cross multiply
    355,165.92x = 490,125.96 × 194,021.04
  4. Step 4: Simplify right side
    355,165.92x = 95,094,748,490.20
  5. Step 5: Solve for x
    x = 95,094,748,490.20/355,165.92
  6. Step 6: Final answer
    x = 267,747.39

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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.