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Finding the Fourth Proportional to 79,266.63, 109,387.95 and 43,456.89

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Solution

The fourth proportional to 79,266.63, 109,387.95 and 43,456.89 is: 59,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266.63 : 109,387.95 = 43,456.89 : x
  2. Step 2: Convert to fraction form
    79,266.63/109,387.95 = 43,456.89/x
  3. Step 3: Cross multiply
    79,266.63x = 109,387.95 × 43,456.89
  4. Step 4: Simplify right side
    79,266.63x = 4,753,660,357.72
  5. Step 5: Solve for x
    x = 4,753,660,357.72/79,266.63
  6. Step 6: Final answer
    x = 59,970.51

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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.