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Finding the Fourth Proportional to 168,818.18, 234,034.52 and 159,829.61

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Solution

The fourth proportional to 168,818.18, 234,034.52 and 159,829.61 is: 221,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,818.18 : 234,034.52 = 159,829.61 : x
  2. Step 2: Convert to fraction form
    168,818.18/234,034.52 = 159,829.61/x
  3. Step 3: Cross multiply
    168,818.18x = 234,034.52 × 159,829.61
  4. Step 4: Simplify right side
    168,818.18x = 37,405,644,088.82
  5. Step 5: Solve for x
    x = 37,405,644,088.82/168,818.18
  6. Step 6: Final answer
    x = 221,573.56

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.