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Finding the Fourth Proportional to 79,719.92, 110,013.35 and 43,912.35

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Solution

The fourth proportional to 79,719.92, 110,013.35 and 43,912.35 is: 60,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.92 : 110,013.35 = 43,912.35 : x
  2. Step 2: Convert to fraction form
    79,719.92/110,013.35 = 43,912.35/x
  3. Step 3: Cross multiply
    79,719.92x = 110,013.35 × 43,912.35
  4. Step 4: Simplify right side
    79,719.92x = 4,830,944,729.87
  5. Step 5: Solve for x
    x = 4,830,944,729.87/79,719.92
  6. Step 6: Final answer
    x = 60,598.97

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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.