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Finding the Fourth Proportional to 373,165.63, 514,965.95 and 203,400.97

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Solution

The fourth proportional to 373,165.63, 514,965.95 and 203,400.97 is: 280,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,165.63 : 514,965.95 = 203,400.97 : x
  2. Step 2: Convert to fraction form
    373,165.63/514,965.95 = 203,400.97/x
  3. Step 3: Cross multiply
    373,165.63x = 514,965.95 × 203,400.97
  4. Step 4: Simplify right side
    373,165.63x = 104,744,572,729.97
  5. Step 5: Solve for x
    x = 104,744,572,729.97/373,165.63
  6. Step 6: Final answer
    x = 280,691.91

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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.