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Finding the Fourth Proportional to 357,331.56, 493,123.68 and 196,193.40

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Solution

The fourth proportional to 357,331.56, 493,123.68 and 196,193.40 is: 270,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,331.56 : 493,123.68 = 196,193.40 : x
  2. Step 2: Convert to fraction form
    357,331.56/493,123.68 = 196,193.40/x
  3. Step 3: Cross multiply
    357,331.56x = 493,123.68 × 196,193.40
  4. Step 4: Simplify right side
    357,331.56x = 96,747,611,399.71
  5. Step 5: Solve for x
    x = 96,747,611,399.71/357,331.56
  6. Step 6: Final answer
    x = 270,750.26

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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.