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Finding the Fourth Proportional to 168,960.62, 232,783.28 and 138,698.03

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Solution

The fourth proportional to 168,960.62, 232,783.28 and 138,698.03 is: 191,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,960.62 : 232,783.28 = 138,698.03 : x
  2. Step 2: Convert to fraction form
    168,960.62/232,783.28 = 138,698.03/x
  3. Step 3: Cross multiply
    168,960.62x = 232,783.28 × 138,698.03
  4. Step 4: Simplify right side
    168,960.62x = 32,286,582,761.52
  5. Step 5: Solve for x
    x = 32,286,582,761.52/168,960.62
  6. Step 6: Final answer
    x = 191,089.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.