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Finding the Fourth Proportional to 347,421.26, 479,400.98 and 194,467.98

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Solution

The fourth proportional to 347,421.26, 479,400.98 and 194,467.98 is: 268,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,421.26 : 479,400.98 = 194,467.98 : x
  2. Step 2: Convert to fraction form
    347,421.26/479,400.98 = 194,467.98/x
  3. Step 3: Cross multiply
    347,421.26x = 479,400.98 × 194,467.98
  4. Step 4: Simplify right side
    347,421.26x = 93,228,140,190.62
  5. Step 5: Solve for x
    x = 93,228,140,190.62/347,421.26
  6. Step 6: Final answer
    x = 268,343.22

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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.