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Finding the Fourth Proportional to 55,248.99, 82,881.65 and 20,180.44

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Solution

The fourth proportional to 55,248.99, 82,881.65 and 20,180.44 is: 30,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,248.99 : 82,881.65 = 20,180.44 : x
  2. Step 2: Convert to fraction form
    55,248.99/82,881.65 = 20,180.44/x
  3. Step 3: Cross multiply
    55,248.99x = 82,881.65 × 20,180.44
  4. Step 4: Simplify right side
    55,248.99x = 1,672,588,164.93
  5. Step 5: Solve for x
    x = 1,672,588,164.93/55,248.99
  6. Step 6: Final answer
    x = 30,273.64

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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.