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Finding the Fourth Proportional to 227,188.65, 313,507.71 and 136,527.78

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Solution

The fourth proportional to 227,188.65, 313,507.71 and 136,527.78 is: 188,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,188.65 : 313,507.71 = 136,527.78 : x
  2. Step 2: Convert to fraction form
    227,188.65/313,507.71 = 136,527.78/x
  3. Step 3: Cross multiply
    227,188.65x = 313,507.71 × 136,527.78
  4. Step 4: Simplify right side
    227,188.65x = 42,802,511,659.18
  5. Step 5: Solve for x
    x = 42,802,511,659.18/227,188.65
  6. Step 6: Final answer
    x = 188,400.75

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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.