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Finding the Fourth Proportional to 542,081.77, 813,124.44 and 137,273.76

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Solution

The fourth proportional to 542,081.77, 813,124.44 and 137,273.76 is: 205,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,081.77 : 813,124.44 = 137,273.76 : x
  2. Step 2: Convert to fraction form
    542,081.77/813,124.44 = 137,273.76/x
  3. Step 3: Cross multiply
    542,081.77x = 813,124.44 × 137,273.76
  4. Step 4: Simplify right side
    542,081.77x = 111,620,649,226.69
  5. Step 5: Solve for x
    x = 111,620,649,226.69/542,081.77
  6. Step 6: Final answer
    x = 205,911.09

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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.