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Finding the Fourth Proportional to 70,944.46, 106,433.39 and 21,024.97

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Solution

The fourth proportional to 70,944.46, 106,433.39 and 21,024.97 is: 31,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,944.46 : 106,433.39 = 21,024.97 : x
  2. Step 2: Convert to fraction form
    70,944.46/106,433.39 = 21,024.97/x
  3. Step 3: Cross multiply
    70,944.46x = 106,433.39 × 21,024.97
  4. Step 4: Simplify right side
    70,944.46x = 2,237,758,618.23
  5. Step 5: Solve for x
    x = 2,237,758,618.23/70,944.46
  6. Step 6: Final answer
    x = 31,542.40

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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.