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Finding the Fourth Proportional to 68,659.01, 102,704.15 and 64,459.97

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Solution

The fourth proportional to 68,659.01, 102,704.15 and 64,459.97 is: 96,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,659.01 : 102,704.15 = 64,459.97 : x
  2. Step 2: Convert to fraction form
    68,659.01/102,704.15 = 64,459.97/x
  3. Step 3: Cross multiply
    68,659.01x = 102,704.15 × 64,459.97
  4. Step 4: Simplify right side
    68,659.01x = 6,620,306,460.65
  5. Step 5: Solve for x
    x = 6,620,306,460.65/68,659.01
  6. Step 6: Final answer
    x = 96,422.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.