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Finding the Fourth Proportional to 73,195.50, 109,808.74 and 28,218.02

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Solution

The fourth proportional to 73,195.50, 109,808.74 and 28,218.02 is: 42,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,195.50 : 109,808.74 = 28,218.02 : x
  2. Step 2: Convert to fraction form
    73,195.50/109,808.74 = 28,218.02/x
  3. Step 3: Cross multiply
    73,195.50x = 109,808.74 × 28,218.02
  4. Step 4: Simplify right side
    73,195.50x = 3,098,585,221.49
  5. Step 5: Solve for x
    x = 3,098,585,221.49/73,195.50
  6. Step 6: Final answer
    x = 42,333.00

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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.