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Finding the Fourth Proportional to 168,136.62, 252,490.61 and 112,335.31

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Solution

The fourth proportional to 168,136.62, 252,490.61 and 112,335.31 is: 168,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,136.62 : 252,490.61 = 112,335.31 : x
  2. Step 2: Convert to fraction form
    168,136.62/252,490.61 = 112,335.31/x
  3. Step 3: Cross multiply
    168,136.62x = 252,490.61 × 112,335.31
  4. Step 4: Simplify right side
    168,136.62x = 28,363,610,946.44
  5. Step 5: Solve for x
    x = 28,363,610,946.44/168,136.62
  6. Step 6: Final answer
    x = 168,693.83

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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.