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Finding the Fourth Proportional to 421,108.41, 581,157.24 and 237,392.31

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Solution

The fourth proportional to 421,108.41, 581,157.24 and 237,392.31 is: 327,616.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,108.41 : 581,157.24 = 237,392.31 : x
  2. Step 2: Convert to fraction form
    421,108.41/581,157.24 = 237,392.31/x
  3. Step 3: Cross multiply
    421,108.41x = 581,157.24 × 237,392.31
  4. Step 4: Simplify right side
    421,108.41x = 137,962,259,676.82
  5. Step 5: Solve for x
    x = 137,962,259,676.82/421,108.41
  6. Step 6: Final answer
    x = 327,616.97

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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.