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Finding the Fourth Proportional to 270,908.47, 373,849.58 and 148,399.87

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Solution

The fourth proportional to 270,908.47, 373,849.58 and 148,399.87 is: 204,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,908.47 : 373,849.58 = 148,399.87 : x
  2. Step 2: Convert to fraction form
    270,908.47/373,849.58 = 148,399.87/x
  3. Step 3: Cross multiply
    270,908.47x = 373,849.58 × 148,399.87
  4. Step 4: Simplify right side
    270,908.47x = 55,479,229,425.60
  5. Step 5: Solve for x
    x = 55,479,229,425.60/270,908.47
  6. Step 6: Final answer
    x = 204,789.57

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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.