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Finding the Fourth Proportional to 70,690.73, 97,629.30 and 43,896.87

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Solution

The fourth proportional to 70,690.73, 97,629.30 and 43,896.87 is: 60,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,690.73 : 97,629.30 = 43,896.87 : x
  2. Step 2: Convert to fraction form
    70,690.73/97,629.30 = 43,896.87/x
  3. Step 3: Cross multiply
    70,690.73x = 97,629.30 × 43,896.87
  4. Step 4: Simplify right side
    70,690.73x = 4,285,620,690.29
  5. Step 5: Solve for x
    x = 4,285,620,690.29/70,690.73
  6. Step 6: Final answer
    x = 60,624.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.