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Finding the Fourth Proportional to 226,587.60, 339,889.08 and 68,815.50

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Solution

The fourth proportional to 226,587.60, 339,889.08 and 68,815.50 is: 103,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,587.60 : 339,889.08 = 68,815.50 : x
  2. Step 2: Convert to fraction form
    226,587.60/339,889.08 = 68,815.50/x
  3. Step 3: Cross multiply
    226,587.60x = 339,889.08 × 68,815.50
  4. Step 4: Simplify right side
    226,587.60x = 23,389,636,984.74
  5. Step 5: Solve for x
    x = 23,389,636,984.74/226,587.60
  6. Step 6: Final answer
    x = 103,225.58

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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.