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Finding the Fourth Proportional to 70,677.87, 106,016.94 and 17,369.88

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Solution

The fourth proportional to 70,677.87, 106,016.94 and 17,369.88 is: 26,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,677.87 : 106,016.94 = 17,369.88 : x
  2. Step 2: Convert to fraction form
    70,677.87/106,016.94 = 17,369.88/x
  3. Step 3: Cross multiply
    70,677.87x = 106,016.94 × 17,369.88
  4. Step 4: Simplify right side
    70,677.87x = 1,841,501,525.77
  5. Step 5: Solve for x
    x = 1,841,501,525.77/70,677.87
  6. Step 6: Final answer
    x = 26,054.85

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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.