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Finding the Fourth Proportional to 654,986.69, 982,479.96 and 181,672.05

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Solution

The fourth proportional to 654,986.69, 982,479.96 and 181,672.05 is: 272,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,986.69 : 982,479.96 = 181,672.05 : x
  2. Step 2: Convert to fraction form
    654,986.69/982,479.96 = 181,672.05/x
  3. Step 3: Cross multiply
    654,986.69x = 982,479.96 × 181,672.05
  4. Step 4: Simplify right side
    654,986.69x = 178,489,148,417.12
  5. Step 5: Solve for x
    x = 178,489,148,417.12/654,986.69
  6. Step 6: Final answer
    x = 272,508.05

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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.