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Finding the Fourth Proportional to 168,731.10, 253,133.10 and 50,414.40

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Solution

The fourth proportional to 168,731.10, 253,133.10 and 50,414.40 is: 75,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,731.10 : 253,133.10 = 50,414.40 : x
  2. Step 2: Convert to fraction form
    168,731.10/253,133.10 = 50,414.40/x
  3. Step 3: Cross multiply
    168,731.10x = 253,133.10 × 50,414.40
  4. Step 4: Simplify right side
    168,731.10x = 12,761,553,356.64
  5. Step 5: Solve for x
    x = 12,761,553,356.64/168,731.10
  6. Step 6: Final answer
    x = 75,632.49

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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.