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Finding the Fourth Proportional to 168,497.11, 252,740.79 and 68,632.60

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Solution

The fourth proportional to 168,497.11, 252,740.79 and 68,632.60 is: 102,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,497.11 : 252,740.79 = 68,632.60 : x
  2. Step 2: Convert to fraction form
    168,497.11/252,740.79 = 68,632.60/x
  3. Step 3: Cross multiply
    168,497.11x = 252,740.79 × 68,632.60
  4. Step 4: Simplify right side
    168,497.11x = 17,346,257,543.75
  5. Step 5: Solve for x
    x = 17,346,257,543.75/168,497.11
  6. Step 6: Final answer
    x = 102,946.91

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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.