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Finding the Fourth Proportional to 169,578.20, 234,018.81 and 105,952.89

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Solution

The fourth proportional to 169,578.20, 234,018.81 and 105,952.89 is: 146,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,578.20 : 234,018.81 = 105,952.89 : x
  2. Step 2: Convert to fraction form
    169,578.20/234,018.81 = 105,952.89/x
  3. Step 3: Cross multiply
    169,578.20x = 234,018.81 × 105,952.89
  4. Step 4: Simplify right side
    169,578.20x = 24,794,969,233.86
  5. Step 5: Solve for x
    x = 24,794,969,233.86/169,578.20
  6. Step 6: Final answer
    x = 146,215.55

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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.