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Finding the Fourth Proportional to 157,608.08, 217,505.26 and 89,631.26

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Solution

The fourth proportional to 157,608.08, 217,505.26 and 89,631.26 is: 123,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,608.08 : 217,505.26 = 89,631.26 : x
  2. Step 2: Convert to fraction form
    157,608.08/217,505.26 = 89,631.26/x
  3. Step 3: Cross multiply
    157,608.08x = 217,505.26 × 89,631.26
  4. Step 4: Simplify right side
    157,608.08x = 19,495,270,510.43
  5. Step 5: Solve for x
    x = 19,495,270,510.43/157,608.08
  6. Step 6: Final answer
    x = 123,694.61

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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.