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Finding the Fourth Proportional to 72,491.15, 108,767.85 and 35,079.17

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Solution

The fourth proportional to 72,491.15, 108,767.85 and 35,079.17 is: 52,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,491.15 : 108,767.85 = 35,079.17 : x
  2. Step 2: Convert to fraction form
    72,491.15/108,767.85 = 35,079.17/x
  3. Step 3: Cross multiply
    72,491.15x = 108,767.85 × 35,079.17
  4. Step 4: Simplify right side
    72,491.15x = 3,815,485,356.85
  5. Step 5: Solve for x
    x = 3,815,485,356.85/72,491.15
  6. Step 6: Final answer
    x = 52,633.81

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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.