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Finding the Fourth Proportional to 124,528.54, 171,851.37 and 67,939.92

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Solution

The fourth proportional to 124,528.54, 171,851.37 and 67,939.92 is: 93,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,528.54 : 171,851.37 = 67,939.92 : x
  2. Step 2: Convert to fraction form
    124,528.54/171,851.37 = 67,939.92/x
  3. Step 3: Cross multiply
    124,528.54x = 171,851.37 × 67,939.92
  4. Step 4: Simplify right side
    124,528.54x = 11,675,568,329.69
  5. Step 5: Solve for x
    x = 11,675,568,329.69/124,528.54
  6. Step 6: Final answer
    x = 93,758.17

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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.