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Finding the Fourth Proportional to 70,645.87, 105,844.27 and 37,292.46

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Solution

The fourth proportional to 70,645.87, 105,844.27 and 37,292.46 is: 55,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.87 : 105,844.27 = 37,292.46 : x
  2. Step 2: Convert to fraction form
    70,645.87/105,844.27 = 37,292.46/x
  3. Step 3: Cross multiply
    70,645.87x = 105,844.27 × 37,292.46
  4. Step 4: Simplify right side
    70,645.87x = 3,947,193,205.20
  5. Step 5: Solve for x
    x = 3,947,193,205.20/70,645.87
  6. Step 6: Final answer
    x = 55,872.95

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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.