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Finding the Fourth Proportional to 70,890.75, 106,299.96 and 23,488.74

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Solution

The fourth proportional to 70,890.75, 106,299.96 and 23,488.74 is: 35,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.75 : 106,299.96 = 23,488.74 : x
  2. Step 2: Convert to fraction form
    70,890.75/106,299.96 = 23,488.74/x
  3. Step 3: Cross multiply
    70,890.75x = 106,299.96 × 23,488.74
  4. Step 4: Simplify right side
    70,890.75x = 2,496,852,122.45
  5. Step 5: Solve for x
    x = 2,496,852,122.45/70,890.75
  6. Step 6: Final answer
    x = 35,221.13

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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.