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Finding the Fourth Proportional to 71,863.92, 99,177.48 and 46,786.32

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Solution

The fourth proportional to 71,863.92, 99,177.48 and 46,786.32 is: 64,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,863.92 : 99,177.48 = 46,786.32 : x
  2. Step 2: Convert to fraction form
    71,863.92/99,177.48 = 46,786.32/x
  3. Step 3: Cross multiply
    71,863.92x = 99,177.48 × 46,786.32
  4. Step 4: Simplify right side
    71,863.92x = 4,640,149,316.07
  5. Step 5: Solve for x
    x = 4,640,149,316.07/71,863.92
  6. Step 6: Final answer
    x = 64,568.55

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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.