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Finding the Fourth Proportional to 181,984.80, 272,928.60 and 55,624.80

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Solution

The fourth proportional to 181,984.80, 272,928.60 and 55,624.80 is: 83,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,984.80 : 272,928.60 = 55,624.80 : x
  2. Step 2: Convert to fraction form
    181,984.80/272,928.60 = 55,624.80/x
  3. Step 3: Cross multiply
    181,984.80x = 272,928.60 × 55,624.80
  4. Step 4: Simplify right side
    181,984.80x = 15,181,598,789.28
  5. Step 5: Solve for x
    x = 15,181,598,789.28/181,984.80
  6. Step 6: Final answer
    x = 83,422.35

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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.