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Finding the Fourth Proportional to 172,081.87, 237,406.60 and 126,867.33

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Solution

The fourth proportional to 172,081.87, 237,406.60 and 126,867.33 is: 175,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,081.87 : 237,406.60 = 126,867.33 : x
  2. Step 2: Convert to fraction form
    172,081.87/237,406.60 = 126,867.33/x
  3. Step 3: Cross multiply
    172,081.87x = 237,406.60 × 126,867.33
  4. Step 4: Simplify right side
    172,081.87x = 30,119,141,466.38
  5. Step 5: Solve for x
    x = 30,119,141,466.38/172,081.87
  6. Step 6: Final answer
    x = 175,027.98

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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.