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Finding the Fourth Proportional to 79,768.95, 110,079.73 and 43,470.73

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Solution

The fourth proportional to 79,768.95, 110,079.73 and 43,470.73 is: 59,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.95 : 110,079.73 = 43,470.73 : x
  2. Step 2: Convert to fraction form
    79,768.95/110,079.73 = 43,470.73/x
  3. Step 3: Cross multiply
    79,768.95x = 110,079.73 × 43,470.73
  4. Step 4: Simplify right side
    79,768.95x = 4,785,245,549.52
  5. Step 5: Solve for x
    x = 4,785,245,549.52/79,768.95
  6. Step 6: Final answer
    x = 59,988.82

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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.