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Finding the Fourth Proportional to 70,448.88, 105,697.62 and 44,122.32

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Solution

The fourth proportional to 70,448.88, 105,697.62 and 44,122.32 is: 66,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,448.88 : 105,697.62 = 44,122.32 : x
  2. Step 2: Convert to fraction form
    70,448.88/105,697.62 = 44,122.32/x
  3. Step 3: Cross multiply
    70,448.88x = 105,697.62 × 44,122.32
  4. Step 4: Simplify right side
    70,448.88x = 4,663,624,212.88
  5. Step 5: Solve for x
    x = 4,663,624,212.88/70,448.88
  6. Step 6: Final answer
    x = 66,198.70

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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.