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Finding the Fourth Proportional to 84,919.52, 117,192.84 and 47,191.52

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Solution

The fourth proportional to 84,919.52, 117,192.84 and 47,191.52 is: 65,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.52 : 117,192.84 = 47,191.52 : x
  2. Step 2: Convert to fraction form
    84,919.52/117,192.84 = 47,191.52/x
  3. Step 3: Cross multiply
    84,919.52x = 117,192.84 × 47,191.52
  4. Step 4: Simplify right side
    84,919.52x = 5,530,508,252.72
  5. Step 5: Solve for x
    x = 5,530,508,252.72/84,919.52
  6. Step 6: Final answer
    x = 65,126.47

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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.