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Finding the Fourth Proportional to 63,647.66, 87,857.44 and 54,659.10

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Solution

The fourth proportional to 63,647.66, 87,857.44 and 54,659.10 is: 75,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,647.66 : 87,857.44 = 54,659.10 : x
  2. Step 2: Convert to fraction form
    63,647.66/87,857.44 = 54,659.10/x
  3. Step 3: Cross multiply
    63,647.66x = 87,857.44 × 54,659.10
  4. Step 4: Simplify right side
    63,647.66x = 4,802,208,598.70
  5. Step 5: Solve for x
    x = 4,802,208,598.70/63,647.66
  6. Step 6: Final answer
    x = 75,449.88

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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.