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Finding the Fourth Proportional to 70,679.37, 106,019.19 and 17,371.38

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Solution

The fourth proportional to 70,679.37, 106,019.19 and 17,371.38 is: 26,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,679.37 : 106,019.19 = 17,371.38 : x
  2. Step 2: Convert to fraction form
    70,679.37/106,019.19 = 17,371.38/x
  3. Step 3: Cross multiply
    70,679.37x = 106,019.19 × 17,371.38
  4. Step 4: Simplify right side
    70,679.37x = 1,841,699,636.78
  5. Step 5: Solve for x
    x = 1,841,699,636.78/70,679.37
  6. Step 6: Final answer
    x = 26,057.10

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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.