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Finding the Fourth Proportional to 181,987.72, 272,982.25 and 55,627.46

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Solution

The fourth proportional to 181,987.72, 272,982.25 and 55,627.46 is: 83,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,987.72 : 272,982.25 = 55,627.46 : x
  2. Step 2: Convert to fraction form
    181,987.72/272,982.25 = 55,627.46/x
  3. Step 3: Cross multiply
    181,987.72x = 272,982.25 × 55,627.46
  4. Step 4: Simplify right side
    181,987.72x = 15,185,309,192.59
  5. Step 5: Solve for x
    x = 15,185,309,192.59/181,987.72
  6. Step 6: Final answer
    x = 83,441.39

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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.