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Finding the Fourth Proportional to 226,907.20, 340,360.80 and 108,809.20

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Solution

The fourth proportional to 226,907.20, 340,360.80 and 108,809.20 is: 163,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,907.20 : 340,360.80 = 108,809.20 : x
  2. Step 2: Convert to fraction form
    226,907.20/340,360.80 = 108,809.20/x
  3. Step 3: Cross multiply
    226,907.20x = 340,360.80 × 108,809.20
  4. Step 4: Simplify right side
    226,907.20x = 37,034,386,359.36
  5. Step 5: Solve for x
    x = 37,034,386,359.36/226,907.20
  6. Step 6: Final answer
    x = 163,213.80

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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.