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Finding the Fourth Proportional to 168,992.47, 253,397.77 and 67,739.70

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Solution

The fourth proportional to 168,992.47, 253,397.77 and 67,739.70 is: 101,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,992.47 : 253,397.77 = 67,739.70 : x
  2. Step 2: Convert to fraction form
    168,992.47/253,397.77 = 67,739.70/x
  3. Step 3: Cross multiply
    168,992.47x = 253,397.77 × 67,739.70
  4. Step 4: Simplify right side
    168,992.47x = 17,165,088,920.47
  5. Step 5: Solve for x
    x = 17,165,088,920.47/168,992.47
  6. Step 6: Final answer
    x = 101,573.10

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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.