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Finding the Fourth Proportional to 157,736.92, 217,668.42 and 89,751.88

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Solution

The fourth proportional to 157,736.92, 217,668.42 and 89,751.88 is: 123,852.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736.92 : 217,668.42 = 89,751.88 : x
  2. Step 2: Convert to fraction form
    157,736.92/217,668.42 = 89,751.88/x
  3. Step 3: Cross multiply
    157,736.92x = 217,668.42 × 89,751.88
  4. Step 4: Simplify right side
    157,736.92x = 19,536,149,911.63
  5. Step 5: Solve for x
    x = 19,536,149,911.63/157,736.92
  6. Step 6: Final answer
    x = 123,852.74

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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.