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Finding the Fourth Proportional to 342,037, 472,011.06 and 191,134

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Solution

The fourth proportional to 342,037, 472,011.06 and 191,134 is: 263,764.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,037 : 472,011.06 = 191,134 : x
  2. Step 2: Convert to fraction form
    342,037/472,011.06 = 191,134/x
  3. Step 3: Cross multiply
    342,037x = 472,011.06 × 191,134
  4. Step 4: Simplify right side
    342,037x = 90,217,361,942.04
  5. Step 5: Solve for x
    x = 90,217,361,942.04/342,037
  6. Step 6: Final answer
    x = 263,764.92

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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.