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Finding the Fourth Proportional to 84,956.60, 117,271.92 and 63,797

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Solution

The fourth proportional to 84,956.60, 117,271.92 and 63,797 is: 88,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,956.60 : 117,271.92 = 63,797 : x
  2. Step 2: Convert to fraction form
    84,956.60/117,271.92 = 63,797/x
  3. Step 3: Cross multiply
    84,956.60x = 117,271.92 × 63,797
  4. Step 4: Simplify right side
    84,956.60x = 7,481,596,680.24
  5. Step 5: Solve for x
    x = 7,481,596,680.24/84,956.60
  6. Step 6: Final answer
    x = 88,063.75

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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.