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Finding the Fourth Proportional to 65,348.34, 90,179.49 and 36,668.52

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Solution

The fourth proportional to 65,348.34, 90,179.49 and 36,668.52 is: 50,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,348.34 : 90,179.49 = 36,668.52 : x
  2. Step 2: Convert to fraction form
    65,348.34/90,179.49 = 36,668.52/x
  3. Step 3: Cross multiply
    65,348.34x = 90,179.49 × 36,668.52
  4. Step 4: Simplify right side
    65,348.34x = 3,306,748,432.65
  5. Step 5: Solve for x
    x = 3,306,748,432.65/65,348.34
  6. Step 6: Final answer
    x = 50,601.87

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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.