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Finding the Fourth Proportional to 270,138.24, 372,791.04 and 156,968.64

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Solution

The fourth proportional to 270,138.24, 372,791.04 and 156,968.64 is: 216,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,138.24 : 372,791.04 = 156,968.64 : x
  2. Step 2: Convert to fraction form
    270,138.24/372,791.04 = 156,968.64/x
  3. Step 3: Cross multiply
    270,138.24x = 372,791.04 × 156,968.64
  4. Step 4: Simplify right side
    270,138.24x = 58,516,502,552.99
  5. Step 5: Solve for x
    x = 58,516,502,552.99/270,138.24
  6. Step 6: Final answer
    x = 216,616.88

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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.