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Finding the Fourth Proportional to 226,538.80, 312,627.18 and 124,568.80

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Solution

The fourth proportional to 226,538.80, 312,627.18 and 124,568.80 is: 171,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,538.80 : 312,627.18 = 124,568.80 : x
  2. Step 2: Convert to fraction form
    226,538.80/312,627.18 = 124,568.80/x
  3. Step 3: Cross multiply
    226,538.80x = 312,627.18 × 124,568.80
  4. Step 4: Simplify right side
    226,538.80x = 38,943,592,659.98
  5. Step 5: Solve for x
    x = 38,943,592,659.98/226,538.80
  6. Step 6: Final answer
    x = 171,906.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.