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Finding the Fourth Proportional to 226,765.50, 340,151.52 and 79,021.50

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Solution

The fourth proportional to 226,765.50, 340,151.52 and 79,021.50 is: 118,533.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,765.50 : 340,151.52 = 79,021.50 : x
  2. Step 2: Convert to fraction form
    226,765.50/340,151.52 = 79,021.50/x
  3. Step 3: Cross multiply
    226,765.50x = 340,151.52 × 79,021.50
  4. Step 4: Simplify right side
    226,765.50x = 26,879,283,337.68
  5. Step 5: Solve for x
    x = 26,879,283,337.68/226,765.50
  6. Step 6: Final answer
    x = 118,533.39

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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.