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Finding the Fourth Proportional to 73,772, 110,703.36 and 38,736.80

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Solution

The fourth proportional to 73,772, 110,703.36 and 38,736.80 is: 58,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,772 : 110,703.36 = 38,736.80 : x
  2. Step 2: Convert to fraction form
    73,772/110,703.36 = 38,736.80/x
  3. Step 3: Cross multiply
    73,772x = 110,703.36 × 38,736.80
  4. Step 4: Simplify right side
    73,772x = 4,288,293,915.65
  5. Step 5: Solve for x
    x = 4,288,293,915.65/73,772
  6. Step 6: Final answer
    x = 58,129.02

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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.