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Finding the Fourth Proportional to 123,959.32, 185,943.40 and 39,708.54

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Solution

The fourth proportional to 123,959.32, 185,943.40 and 39,708.54 is: 59,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,959.32 : 185,943.40 = 39,708.54 : x
  2. Step 2: Convert to fraction form
    123,959.32/185,943.40 = 39,708.54/x
  3. Step 3: Cross multiply
    123,959.32x = 185,943.40 × 39,708.54
  4. Step 4: Simplify right side
    123,959.32x = 7,383,540,936.64
  5. Step 5: Solve for x
    x = 7,383,540,936.64/123,959.32
  6. Step 6: Final answer
    x = 59,564.23

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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.