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Finding the Fourth Proportional to 79,704, 109,991.52 and 44,376

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Solution

The fourth proportional to 79,704, 109,991.52 and 44,376 is: 61,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704 : 109,991.52 = 44,376 : x
  2. Step 2: Convert to fraction form
    79,704/109,991.52 = 44,376/x
  3. Step 3: Cross multiply
    79,704x = 109,991.52 × 44,376
  4. Step 4: Simplify right side
    79,704x = 4,880,983,691.52
  5. Step 5: Solve for x
    x = 4,880,983,691.52/79,704
  6. Step 6: Final answer
    x = 61,238.88

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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.