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Finding the Fourth Proportional to 356,073.83, 534,163.28 and 103,321.46

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Solution

The fourth proportional to 356,073.83, 534,163.28 and 103,321.46 is: 154,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,073.83 : 534,163.28 = 103,321.46 : x
  2. Step 2: Convert to fraction form
    356,073.83/534,163.28 = 103,321.46/x
  3. Step 3: Cross multiply
    356,073.83x = 534,163.28 × 103,321.46
  4. Step 4: Simplify right side
    356,073.83x = 55,190,526,780.57
  5. Step 5: Solve for x
    x = 55,190,526,780.57/356,073.83
  6. Step 6: Final answer
    x = 154,997.43

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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.