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Finding the Fourth Proportional to 181,863.50, 272,835.95 and 55,514.97

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Solution

The fourth proportional to 181,863.50, 272,835.95 and 55,514.97 is: 83,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,863.50 : 272,835.95 = 55,514.97 : x
  2. Step 2: Convert to fraction form
    181,863.50/272,835.95 = 55,514.97/x
  3. Step 3: Cross multiply
    181,863.50x = 272,835.95 × 55,514.97
  4. Step 4: Simplify right side
    181,863.50x = 15,146,479,301.60
  5. Step 5: Solve for x
    x = 15,146,479,301.60/181,863.50
  6. Step 6: Final answer
    x = 83,284.88

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1.5x scale

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.