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Finding the Fourth Proportional to 67,805.70, 101,634.66 and 57,914.97

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Solution

The fourth proportional to 67,805.70, 101,634.66 and 57,914.97 is: 86,809.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,805.70 : 101,634.66 = 57,914.97 : x
  2. Step 2: Convert to fraction form
    67,805.70/101,634.66 = 57,914.97/x
  3. Step 3: Cross multiply
    67,805.70x = 101,634.66 × 57,914.97
  4. Step 4: Simplify right side
    67,805.70x = 5,886,168,284.86
  5. Step 5: Solve for x
    x = 5,886,168,284.86/67,805.70
  6. Step 6: Final answer
    x = 86,809.34

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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.