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Finding the Fourth Proportional to 342,717.12, 472,633.56 and 235,097.28

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Solution

The fourth proportional to 342,717.12, 472,633.56 and 235,097.28 is: 324,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,717.12 : 472,633.56 = 235,097.28 : x
  2. Step 2: Convert to fraction form
    342,717.12/472,633.56 = 235,097.28/x
  3. Step 3: Cross multiply
    342,717.12x = 472,633.56 × 235,097.28
  4. Step 4: Simplify right side
    342,717.12x = 111,114,864,392.72
  5. Step 5: Solve for x
    x = 111,114,864,392.72/342,717.12
  6. Step 6: Final answer
    x = 324,217.43

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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.