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Finding the Fourth Proportional to 157,334.72, 217,022.72 and 93,624.96

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Solution

The fourth proportional to 157,334.72, 217,022.72 and 93,624.96 is: 129,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,334.72 : 217,022.72 = 93,624.96 : x
  2. Step 2: Convert to fraction form
    157,334.72/217,022.72 = 93,624.96/x
  3. Step 3: Cross multiply
    157,334.72x = 217,022.72 × 93,624.96
  4. Step 4: Simplify right side
    157,334.72x = 20,318,743,479.09
  5. Step 5: Solve for x
    x = 20,318,743,479.09/157,334.72
  6. Step 6: Final answer
    x = 129,143.42

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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.