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Finding the Fourth Proportional to 79,253.41, 109,380.89 and 49,048.46

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Solution

The fourth proportional to 79,253.41, 109,380.89 and 49,048.46 is: 67,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,253.41 : 109,380.89 = 49,048.46 : x
  2. Step 2: Convert to fraction form
    79,253.41/109,380.89 = 49,048.46/x
  3. Step 3: Cross multiply
    79,253.41x = 109,380.89 × 49,048.46
  4. Step 4: Simplify right side
    79,253.41x = 5,364,964,207.93
  5. Step 5: Solve for x
    x = 5,364,964,207.93/79,253.41
  6. Step 6: Final answer
    x = 67,693.80

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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.