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Finding the Fourth Proportional to 67,967.61, 101,980.11 and 34,216.02

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Solution

The fourth proportional to 67,967.61, 101,980.11 and 34,216.02 is: 51,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,967.61 : 101,980.11 = 34,216.02 : x
  2. Step 2: Convert to fraction form
    67,967.61/101,980.11 = 34,216.02/x
  3. Step 3: Cross multiply
    67,967.61x = 101,980.11 × 34,216.02
  4. Step 4: Simplify right side
    67,967.61x = 3,489,353,611.67
  5. Step 5: Solve for x
    x = 3,489,353,611.67/67,967.61
  6. Step 6: Final answer
    x = 51,338.48

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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.