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Finding the Fourth Proportional to 80,419.94, 110,992.80 and 44,621.48

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Solution

The fourth proportional to 80,419.94, 110,992.80 and 44,621.48 is: 61,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,419.94 : 110,992.80 = 44,621.48 : x
  2. Step 2: Convert to fraction form
    80,419.94/110,992.80 = 44,621.48/x
  3. Step 3: Cross multiply
    80,419.94x = 110,992.80 × 44,621.48
  4. Step 4: Simplify right side
    80,419.94x = 4,952,662,227.27
  5. Step 5: Solve for x
    x = 4,952,662,227.27/80,419.94
  6. Step 6: Final answer
    x = 61,585.01

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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.