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Finding the Fourth Proportional to 403,753.43, 605,632.43 and 104,213.52

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Solution

The fourth proportional to 403,753.43, 605,632.43 and 104,213.52 is: 156,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,753.43 : 605,632.43 = 104,213.52 : x
  2. Step 2: Convert to fraction form
    403,753.43/605,632.43 = 104,213.52/x
  3. Step 3: Cross multiply
    403,753.43x = 605,632.43 × 104,213.52
  4. Step 4: Simplify right side
    403,753.43x = 63,115,086,835.39
  5. Step 5: Solve for x
    x = 63,115,086,835.39/403,753.43
  6. Step 6: Final answer
    x = 156,320.87

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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.