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Finding the Fourth Proportional to 79,590.78, 109,803.44 and 50,903.82

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Solution

The fourth proportional to 79,590.78, 109,803.44 and 50,903.82 is: 70,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,590.78 : 109,803.44 = 50,903.82 : x
  2. Step 2: Convert to fraction form
    79,590.78/109,803.44 = 50,903.82/x
  3. Step 3: Cross multiply
    79,590.78x = 109,803.44 × 50,903.82
  4. Step 4: Simplify right side
    79,590.78x = 5,589,414,545.14
  5. Step 5: Solve for x
    x = 5,589,414,545.14/79,590.78
  6. Step 6: Final answer
    x = 70,226.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.