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Finding the Fourth Proportional to 79,702.43, 110,042.27 and 49,532.76

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Solution

The fourth proportional to 79,702.43, 110,042.27 and 49,532.76 is: 68,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.43 : 110,042.27 = 49,532.76 : x
  2. Step 2: Convert to fraction form
    79,702.43/110,042.27 = 49,532.76/x
  3. Step 3: Cross multiply
    79,702.43x = 110,042.27 × 49,532.76
  4. Step 4: Simplify right side
    79,702.43x = 5,450,697,473.60
  5. Step 5: Solve for x
    x = 5,450,697,473.60/79,702.43
  6. Step 6: Final answer
    x = 68,388.10

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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.