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Finding the Fourth Proportional to 227,021.72, 313,292.08 and 125,047.56

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Solution

The fourth proportional to 227,021.72, 313,292.08 and 125,047.56 is: 172,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,021.72 : 313,292.08 = 125,047.56 : x
  2. Step 2: Convert to fraction form
    227,021.72/313,292.08 = 125,047.56/x
  3. Step 3: Cross multiply
    227,021.72x = 313,292.08 × 125,047.56
  4. Step 4: Simplify right side
    227,021.72x = 39,176,410,171.32
  5. Step 5: Solve for x
    x = 39,176,410,171.32/227,021.72
  6. Step 6: Final answer
    x = 172,566.79

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1.5x scale

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.