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Finding the Fourth Proportional to 57,722.62, 79,613.36 and 49,669.76

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Solution

The fourth proportional to 57,722.62, 79,613.36 and 49,669.76 is: 68,506.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.62 : 79,613.36 = 49,669.76 : x
  2. Step 2: Convert to fraction form
    57,722.62/79,613.36 = 49,669.76/x
  3. Step 3: Cross multiply
    57,722.62x = 79,613.36 × 49,669.76
  4. Step 4: Simplify right side
    57,722.62x = 3,954,376,678.22
  5. Step 5: Solve for x
    x = 3,954,376,678.22/57,722.62
  6. Step 6: Final answer
    x = 68,506.54

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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.