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Finding the Fourth Proportional to 226,690.58, 340,054.90 and 68,920.40

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Solution

The fourth proportional to 226,690.58, 340,054.90 and 68,920.40 is: 103,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,690.58 : 340,054.90 = 68,920.40 : x
  2. Step 2: Convert to fraction form
    226,690.58/340,054.90 = 68,920.40/x
  3. Step 3: Cross multiply
    226,690.58x = 340,054.90 × 68,920.40
  4. Step 4: Simplify right side
    226,690.58x = 23,436,717,857.38
  5. Step 5: Solve for x
    x = 23,436,717,857.38/226,690.58
  6. Step 6: Final answer
    x = 103,386.38

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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.