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Finding the Fourth Proportional to 67,743.62, 101,678.45 and 34,488.56

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Solution

The fourth proportional to 67,743.62, 101,678.45 and 34,488.56 is: 51,764.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,743.62 : 101,678.45 = 34,488.56 : x
  2. Step 2: Convert to fraction form
    67,743.62/101,678.45 = 34,488.56/x
  3. Step 3: Cross multiply
    67,743.62x = 101,678.45 × 34,488.56
  4. Step 4: Simplify right side
    67,743.62x = 3,506,743,323.53
  5. Step 5: Solve for x
    x = 3,506,743,323.53/67,743.62
  6. Step 6: Final answer
    x = 51,764.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.