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Finding the Fourth Proportional to 79,718.01, 110,006.69 and 49,502.68

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Solution

The fourth proportional to 79,718.01, 110,006.69 and 49,502.68 is: 68,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.01 : 110,006.69 = 49,502.68 : x
  2. Step 2: Convert to fraction form
    79,718.01/110,006.69 = 49,502.68/x
  3. Step 3: Cross multiply
    79,718.01x = 110,006.69 × 49,502.68
  4. Step 4: Simplify right side
    79,718.01x = 5,445,625,636.03
  5. Step 5: Solve for x
    x = 5,445,625,636.03/79,718.01
  6. Step 6: Final answer
    x = 68,311.11

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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.