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Finding the Fourth Proportional to 70,622.23, 105,919.37 and 35,046.43

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Solution

The fourth proportional to 70,622.23, 105,919.37 and 35,046.43 is: 52,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,622.23 : 105,919.37 = 35,046.43 : x
  2. Step 2: Convert to fraction form
    70,622.23/105,919.37 = 35,046.43/x
  3. Step 3: Cross multiply
    70,622.23x = 105,919.37 × 35,046.43
  4. Step 4: Simplify right side
    70,622.23x = 3,712,095,611.12
  5. Step 5: Solve for x
    x = 3,712,095,611.12/70,622.23
  6. Step 6: Final answer
    x = 52,562.71

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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.