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Finding the Fourth Proportional to 342,519.19, 472,668.99 and 187,469.71

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Solution

The fourth proportional to 342,519.19, 472,668.99 and 187,469.71 is: 258,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,519.19 : 472,668.99 = 187,469.71 : x
  2. Step 2: Convert to fraction form
    342,519.19/472,668.99 = 187,469.71/x
  3. Step 3: Cross multiply
    342,519.19x = 472,668.99 × 187,469.71
  4. Step 4: Simplify right side
    342,519.19x = 88,611,118,481.29
  5. Step 5: Solve for x
    x = 88,611,118,481.29/342,519.19
  6. Step 6: Final answer
    x = 258,704.10

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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.