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Finding the Fourth Proportional to 79,339.49, 109,481.52 and 45,341.22

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Solution

The fourth proportional to 79,339.49, 109,481.52 and 45,341.22 is: 62,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,339.49 : 109,481.52 = 45,341.22 : x
  2. Step 2: Convert to fraction form
    79,339.49/109,481.52 = 45,341.22/x
  3. Step 3: Cross multiply
    79,339.49x = 109,481.52 × 45,341.22
  4. Step 4: Simplify right side
    79,339.49x = 4,964,025,684.25
  5. Step 5: Solve for x
    x = 4,964,025,684.25/79,339.49
  6. Step 6: Final answer
    x = 62,566.90

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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.