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Finding the Fourth Proportional to 171,078.97, 256,632.81 and 63,037.75

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Solution

The fourth proportional to 171,078.97, 256,632.81 and 63,037.75 is: 94,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,078.97 : 256,632.81 = 63,037.75 : x
  2. Step 2: Convert to fraction form
    171,078.97/256,632.81 = 63,037.75/x
  3. Step 3: Cross multiply
    171,078.97x = 256,632.81 × 63,037.75
  4. Step 4: Simplify right side
    171,078.97x = 16,177,554,918.58
  5. Step 5: Solve for x
    x = 16,177,554,918.58/171,078.97
  6. Step 6: Final answer
    x = 94,561.91

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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.