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Finding the Fourth Proportional to 83,003.00, 114,669.05 and 54,390.65

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Solution

The fourth proportional to 83,003.00, 114,669.05 and 54,390.65 is: 75,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,003.00 : 114,669.05 = 54,390.65 : x
  2. Step 2: Convert to fraction form
    83,003.00/114,669.05 = 54,390.65/x
  3. Step 3: Cross multiply
    83,003.00x = 114,669.05 × 54,390.65
  4. Step 4: Simplify right side
    83,003.00x = 6,236,923,319.08
  5. Step 5: Solve for x
    x = 6,236,923,319.08/83,003.00
  6. Step 6: Final answer
    x = 75,140.94

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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.