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Finding the Fourth Proportional to 79,247.94, 109,355.91 and 45,707.46

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Solution

The fourth proportional to 79,247.94, 109,355.91 and 45,707.46 is: 63,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.94 : 109,355.91 = 45,707.46 : x
  2. Step 2: Convert to fraction form
    79,247.94/109,355.91 = 45,707.46/x
  3. Step 3: Cross multiply
    79,247.94x = 109,355.91 × 45,707.46
  4. Step 4: Simplify right side
    79,247.94x = 4,998,380,882.09
  5. Step 5: Solve for x
    x = 4,998,380,882.09/79,247.94
  6. Step 6: Final answer
    x = 63,072.69

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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.