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Finding the Fourth Proportional to 64,164.29, 96,211.78 and 45,480.92

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Solution

The fourth proportional to 64,164.29, 96,211.78 and 45,480.92 is: 68,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,164.29 : 96,211.78 = 45,480.92 : x
  2. Step 2: Convert to fraction form
    64,164.29/96,211.78 = 45,480.92/x
  3. Step 3: Cross multiply
    64,164.29x = 96,211.78 × 45,480.92
  4. Step 4: Simplify right side
    64,164.29x = 4,375,799,674.48
  5. Step 5: Solve for x
    x = 4,375,799,674.48/64,164.29
  6. Step 6: Final answer
    x = 68,196.81

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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.