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Finding the Fourth Proportional to 117,897.92, 176,786.79 and 57,930.38

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Solution

The fourth proportional to 117,897.92, 176,786.79 and 57,930.38 is: 86,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,897.92 : 176,786.79 = 57,930.38 : x
  2. Step 2: Convert to fraction form
    117,897.92/176,786.79 = 57,930.38/x
  3. Step 3: Cross multiply
    117,897.92x = 176,786.79 × 57,930.38
  4. Step 4: Simplify right side
    117,897.92x = 10,241,325,039.75
  5. Step 5: Solve for x
    x = 10,241,325,039.75/117,897.92
  6. Step 6: Final answer
    x = 86,866.04

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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.