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Finding the Fourth Proportional to 227,191.67, 340,865.90 and 100,920.36

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Solution

The fourth proportional to 227,191.67, 340,865.90 and 100,920.36 is: 151,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,191.67 : 340,865.90 = 100,920.36 : x
  2. Step 2: Convert to fraction form
    227,191.67/340,865.90 = 100,920.36/x
  3. Step 3: Cross multiply
    227,191.67x = 340,865.90 × 100,920.36
  4. Step 4: Simplify right side
    227,191.67x = 34,400,308,835.12
  5. Step 5: Solve for x
    x = 34,400,308,835.12/227,191.67
  6. Step 6: Final answer
    x = 151,415.36

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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.