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Finding the Fourth Proportional to 79,775.41, 110,085.11 and 43,963.42

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Solution

The fourth proportional to 79,775.41, 110,085.11 and 43,963.42 is: 60,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,775.41 : 110,085.11 = 43,963.42 : x
  2. Step 2: Convert to fraction form
    79,775.41/110,085.11 = 43,963.42/x
  3. Step 3: Cross multiply
    79,775.41x = 110,085.11 × 43,963.42
  4. Step 4: Simplify right side
    79,775.41x = 4,839,717,486.16
  5. Step 5: Solve for x
    x = 4,839,717,486.16/79,775.41
  6. Step 6: Final answer
    x = 60,666.79

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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.