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Finding the Fourth Proportional to 270,188.68, 372,856.62 and 149,343.16

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Solution

The fourth proportional to 270,188.68, 372,856.62 and 149,343.16 is: 206,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,188.68 : 372,856.62 = 149,343.16 : x
  2. Step 2: Convert to fraction form
    270,188.68/372,856.62 = 149,343.16/x
  3. Step 3: Cross multiply
    270,188.68x = 372,856.62 × 149,343.16
  4. Step 4: Simplify right side
    270,188.68x = 55,683,585,857.72
  5. Step 5: Solve for x
    x = 55,683,585,857.72/270,188.68
  6. Step 6: Final answer
    x = 206,091.48

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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.