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Finding the Fourth Proportional to 276,651.01, 415,081.10 and 108,291.66

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Solution

The fourth proportional to 276,651.01, 415,081.10 and 108,291.66 is: 162,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,651.01 : 415,081.10 = 108,291.66 : x
  2. Step 2: Convert to fraction form
    276,651.01/415,081.10 = 108,291.66/x
  3. Step 3: Cross multiply
    276,651.01x = 415,081.10 × 108,291.66
  4. Step 4: Simplify right side
    276,651.01x = 44,949,821,353.63
  5. Step 5: Solve for x
    x = 44,949,821,353.63/276,651.01
  6. Step 6: Final answer
    x = 162,478.43

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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.