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Finding the Fourth Proportional to 168,507.11, 252,838.80 and 73,724.79

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Solution

The fourth proportional to 168,507.11, 252,838.80 and 73,724.79 is: 110,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507.11 : 252,838.80 = 73,724.79 : x
  2. Step 2: Convert to fraction form
    168,507.11/252,838.80 = 73,724.79/x
  3. Step 3: Cross multiply
    168,507.11x = 252,838.80 × 73,724.79
  4. Step 4: Simplify right side
    168,507.11x = 18,640,487,981.91
  5. Step 5: Solve for x
    x = 18,640,487,981.91/168,507.11
  6. Step 6: Final answer
    x = 110,621.38

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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.