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Finding the Fourth Proportional to 172,087.50, 237,480.76 and 96,636

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Solution

The fourth proportional to 172,087.50, 237,480.76 and 96,636 is: 133,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,087.50 : 237,480.76 = 96,636 : x
  2. Step 2: Convert to fraction form
    172,087.50/237,480.76 = 96,636/x
  3. Step 3: Cross multiply
    172,087.50x = 237,480.76 × 96,636
  4. Step 4: Simplify right side
    172,087.50x = 22,949,190,723.36
  5. Step 5: Solve for x
    x = 22,949,190,723.36/172,087.50
  6. Step 6: Final answer
    x = 133,357.69

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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.