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Finding the Fourth Proportional to 342,691.66, 472,964.15 and 197,469.19

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Solution

The fourth proportional to 342,691.66, 472,964.15 and 197,469.19 is: 272,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,691.66 : 472,964.15 = 197,469.19 : x
  2. Step 2: Convert to fraction form
    342,691.66/472,964.15 = 197,469.19/x
  3. Step 3: Cross multiply
    342,691.66x = 472,964.15 × 197,469.19
  4. Step 4: Simplify right side
    342,691.66x = 93,395,844,247.37
  5. Step 5: Solve for x
    x = 93,395,844,247.37/342,691.66
  6. Step 6: Final answer
    x = 272,536.09

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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.