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Finding the Fourth Proportional to 120,951.52, 181,456.44 and 118,943.08

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Solution

The fourth proportional to 120,951.52, 181,456.44 and 118,943.08 is: 178,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,951.52 : 181,456.44 = 118,943.08 : x
  2. Step 2: Convert to fraction form
    120,951.52/181,456.44 = 118,943.08/x
  3. Step 3: Cross multiply
    120,951.52x = 181,456.44 × 118,943.08
  4. Step 4: Simplify right side
    120,951.52x = 21,582,987,859.44
  5. Step 5: Solve for x
    x = 21,582,987,859.44/120,951.52
  6. Step 6: Final answer
    x = 178,443.30

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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.