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Finding the Fourth Proportional to 117,287.76, 175,939.56 and 58,107.54

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Solution

The fourth proportional to 117,287.76, 175,939.56 and 58,107.54 is: 87,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,287.76 : 175,939.56 = 58,107.54 : x
  2. Step 2: Convert to fraction form
    117,287.76/175,939.56 = 58,107.54/x
  3. Step 3: Cross multiply
    117,287.76x = 175,939.56 × 58,107.54
  4. Step 4: Simplify right side
    117,287.76x = 10,223,415,020.28
  5. Step 5: Solve for x
    x = 10,223,415,020.28/117,287.76
  6. Step 6: Final answer
    x = 87,165.23

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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.