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Finding the Fourth Proportional to 56,172.60, 84,011.04 and 49,976.10

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Solution

The fourth proportional to 56,172.60, 84,011.04 and 49,976.10 is: 74,743.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.60 : 84,011.04 = 49,976.10 : x
  2. Step 2: Convert to fraction form
    56,172.60/84,011.04 = 49,976.10/x
  3. Step 3: Cross multiply
    56,172.60x = 84,011.04 × 49,976.10
  4. Step 4: Simplify right side
    56,172.60x = 4,198,544,136.14
  5. Step 5: Solve for x
    x = 4,198,544,136.14/56,172.60
  6. Step 6: Final answer
    x = 74,743.63

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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.