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Finding the Fourth Proportional to 73,263.28, 109,816.60 and 52,423.60

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Solution

The fourth proportional to 73,263.28, 109,816.60 and 52,423.60 is: 78,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,263.28 : 109,816.60 = 52,423.60 : x
  2. Step 2: Convert to fraction form
    73,263.28/109,816.60 = 52,423.60/x
  3. Step 3: Cross multiply
    73,263.28x = 109,816.60 × 52,423.60
  4. Step 4: Simplify right side
    73,263.28x = 5,756,981,511.76
  5. Step 5: Solve for x
    x = 5,756,981,511.76/73,263.28
  6. Step 6: Final answer
    x = 78,579.36

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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.