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Finding the Fourth Proportional to 77,805.38, 116,718.87 and 25,197.86

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Solution

The fourth proportional to 77,805.38, 116,718.87 and 25,197.86 is: 37,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,805.38 : 116,718.87 = 25,197.86 : x
  2. Step 2: Convert to fraction form
    77,805.38/116,718.87 = 25,197.86/x
  3. Step 3: Cross multiply
    77,805.38x = 116,718.87 × 25,197.86
  4. Step 4: Simplify right side
    77,805.38x = 2,941,065,745.62
  5. Step 5: Solve for x
    x = 2,941,065,745.62/77,805.38
  6. Step 6: Final answer
    x = 37,800.29

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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.