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Finding the Fourth Proportional to 168,446.77, 252,891.59 and 154,521.05

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Solution

The fourth proportional to 168,446.77, 252,891.59 and 154,521.05 is: 231,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,446.77 : 252,891.59 = 154,521.05 : x
  2. Step 2: Convert to fraction form
    168,446.77/252,891.59 = 154,521.05/x
  3. Step 3: Cross multiply
    168,446.77x = 252,891.59 × 154,521.05
  4. Step 4: Simplify right side
    168,446.77x = 39,077,071,985.91
  5. Step 5: Solve for x
    x = 39,077,071,985.91/168,446.77
  6. Step 6: Final answer
    x = 231,984.70

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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.