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Finding the Fourth Proportional to 79,252.45, 109,371.18 and 43,442.45

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Solution

The fourth proportional to 79,252.45, 109,371.18 and 43,442.45 is: 59,952.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,252.45 : 109,371.18 = 43,442.45 : x
  2. Step 2: Convert to fraction form
    79,252.45/109,371.18 = 43,442.45/x
  3. Step 3: Cross multiply
    79,252.45x = 109,371.18 × 43,442.45
  4. Step 4: Simplify right side
    79,252.45x = 4,751,352,127.20
  5. Step 5: Solve for x
    x = 4,751,352,127.20/79,252.45
  6. Step 6: Final answer
    x = 59,952.12

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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.