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Finding the Fourth Proportional to 73,145.70, 109,752.66 and 33,157.62

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Solution

The fourth proportional to 73,145.70, 109,752.66 and 33,157.62 is: 49,751.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.70 : 109,752.66 = 33,157.62 : x
  2. Step 2: Convert to fraction form
    73,145.70/109,752.66 = 33,157.62/x
  3. Step 3: Cross multiply
    73,145.70x = 109,752.66 × 33,157.62
  4. Step 4: Simplify right side
    73,145.70x = 3,639,136,994.27
  5. Step 5: Solve for x
    x = 3,639,136,994.27/73,145.70
  6. Step 6: Final answer
    x = 49,751.89

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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.