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Finding the Fourth Proportional to 225,996.58, 338,985.14 and 68,220.32

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Solution

The fourth proportional to 225,996.58, 338,985.14 and 68,220.32 is: 102,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,996.58 : 338,985.14 = 68,220.32 : x
  2. Step 2: Convert to fraction form
    225,996.58/338,985.14 = 68,220.32/x
  3. Step 3: Cross multiply
    225,996.58x = 338,985.14 × 68,220.32
  4. Step 4: Simplify right side
    225,996.58x = 23,125,674,726.04
  5. Step 5: Solve for x
    x = 23,125,674,726.04/225,996.58
  6. Step 6: Final answer
    x = 102,327.54

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1.5x scale

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.