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Finding the Fourth Proportional to 79,055.44, 109,098.16 and 43,247.76

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Solution

The fourth proportional to 79,055.44, 109,098.16 and 43,247.76 is: 59,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,055.44 : 109,098.16 = 43,247.76 : x
  2. Step 2: Convert to fraction form
    79,055.44/109,098.16 = 43,247.76/x
  3. Step 3: Cross multiply
    79,055.44x = 109,098.16 × 43,247.76
  4. Step 4: Simplify right side
    79,055.44x = 4,718,251,040.12
  5. Step 5: Solve for x
    x = 4,718,251,040.12/79,055.44
  6. Step 6: Final answer
    x = 59,682.81

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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.