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Finding the Fourth Proportional to 157,456.60, 235,608.90 and 115,984.60

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Solution

The fourth proportional to 157,456.60, 235,608.90 and 115,984.60 is: 173,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,456.60 : 235,608.90 = 115,984.60 : x
  2. Step 2: Convert to fraction form
    157,456.60/235,608.90 = 115,984.60/x
  3. Step 3: Cross multiply
    157,456.60x = 235,608.90 × 115,984.60
  4. Step 4: Simplify right side
    157,456.60x = 27,327,004,022.94
  5. Step 5: Solve for x
    x = 27,327,004,022.94/157,456.60
  6. Step 6: Final answer
    x = 173,552.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.