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Finding the Fourth Proportional to 226,990.31, 340,484.38 and 69,218.24

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Solution

The fourth proportional to 226,990.31, 340,484.38 and 69,218.24 is: 103,827.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,990.31 : 340,484.38 = 69,218.24 : x
  2. Step 2: Convert to fraction form
    226,990.31/340,484.38 = 69,218.24/x
  3. Step 3: Cross multiply
    226,990.31x = 340,484.38 × 69,218.24
  4. Step 4: Simplify right side
    226,990.31x = 23,567,727,655.62
  5. Step 5: Solve for x
    x = 23,567,727,655.62/226,990.31
  6. Step 6: Final answer
    x = 103,827.02

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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.