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Finding the Fourth Proportional to 248,937.66, 343,536.28 and 135,760.42

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Solution

The fourth proportional to 248,937.66, 343,536.28 and 135,760.42 is: 187,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,937.66 : 343,536.28 = 135,760.42 : x
  2. Step 2: Convert to fraction form
    248,937.66/343,536.28 = 135,760.42/x
  3. Step 3: Cross multiply
    248,937.66x = 343,536.28 × 135,760.42
  4. Step 4: Simplify right side
    248,937.66x = 46,638,629,658.04
  5. Step 5: Solve for x
    x = 46,638,629,658.04/248,937.66
  6. Step 6: Final answer
    x = 187,350.64

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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.