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Finding the Fourth Proportional to 342,538.01, 472,698.97 and 189,576.50

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Solution

The fourth proportional to 342,538.01, 472,698.97 and 189,576.50 is: 261,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,538.01 : 472,698.97 = 189,576.50 : x
  2. Step 2: Convert to fraction form
    342,538.01/472,698.97 = 189,576.50/x
  3. Step 3: Cross multiply
    342,538.01x = 472,698.97 × 189,576.50
  4. Step 4: Simplify right side
    342,538.01x = 89,612,616,286.21
  5. Step 5: Solve for x
    x = 89,612,616,286.21/342,538.01
  6. Step 6: Final answer
    x = 261,613.64

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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.