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Finding the Fourth Proportional to 78,839.46, 108,794.10 and 44,843.40

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Solution

The fourth proportional to 78,839.46, 108,794.10 and 44,843.40 is: 61,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.46 : 108,794.10 = 44,843.40 : x
  2. Step 2: Convert to fraction form
    78,839.46/108,794.10 = 44,843.40/x
  3. Step 3: Cross multiply
    78,839.46x = 108,794.10 × 44,843.40
  4. Step 4: Simplify right side
    78,839.46x = 4,878,697,343.94
  5. Step 5: Solve for x
    x = 4,878,697,343.94/78,839.46
  6. Step 6: Final answer
    x = 61,881.42

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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.