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Finding the Fourth Proportional to 342,717.68, 472,956.27 and 187,682.60

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Solution

The fourth proportional to 342,717.68, 472,956.27 and 187,682.60 is: 259,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,717.68 : 472,956.27 = 187,682.60 : x
  2. Step 2: Convert to fraction form
    342,717.68/472,956.27 = 187,682.60/x
  3. Step 3: Cross multiply
    342,717.68x = 472,956.27 × 187,682.60
  4. Step 4: Simplify right side
    342,717.68x = 88,765,662,918.48
  5. Step 5: Solve for x
    x = 88,765,662,918.48/342,717.68
  6. Step 6: Final answer
    x = 259,005.20

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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.