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Finding the Fourth Proportional to 122,610.50, 182,842.80 and 121,489.46

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Solution

The fourth proportional to 122,610.50, 182,842.80 and 121,489.46 is: 181,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,610.50 : 182,842.80 = 121,489.46 : x
  2. Step 2: Convert to fraction form
    122,610.50/182,842.80 = 121,489.46/x
  3. Step 3: Cross multiply
    122,610.50x = 182,842.80 × 121,489.46
  4. Step 4: Simplify right side
    122,610.50x = 22,213,472,429.44
  5. Step 5: Solve for x
    x = 22,213,472,429.44/122,610.50
  6. Step 6: Final answer
    x = 181,171.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.