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Finding the Fourth Proportional to 45,258.90, 67,894.31 and 16,791.98

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Solution

The fourth proportional to 45,258.90, 67,894.31 and 16,791.98 is: 25,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,258.90 : 67,894.31 = 16,791.98 : x
  2. Step 2: Convert to fraction form
    45,258.90/67,894.31 = 16,791.98/x
  3. Step 3: Cross multiply
    45,258.90x = 67,894.31 × 16,791.98
  4. Step 4: Simplify right side
    45,258.90x = 1,140,079,472.20
  5. Step 5: Solve for x
    x = 1,140,079,472.20/45,258.90
  6. Step 6: Final answer
    x = 25,190.17

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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.