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Finding the Fourth Proportional to 83,353.98, 115,027.49 and 45,112.61

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Solution

The fourth proportional to 83,353.98, 115,027.49 and 45,112.61 is: 62,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,353.98 : 115,027.49 = 45,112.61 : x
  2. Step 2: Convert to fraction form
    83,353.98/115,027.49 = 45,112.61/x
  3. Step 3: Cross multiply
    83,353.98x = 115,027.49 × 45,112.61
  4. Step 4: Simplify right side
    83,353.98x = 5,189,190,696.00
  5. Step 5: Solve for x
    x = 5,189,190,696.00/83,353.98
  6. Step 6: Final answer
    x = 62,254.87

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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.