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Finding the Fourth Proportional to 168,273.01, 252,267.97 and 78,270.00

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Solution

The fourth proportional to 168,273.01, 252,267.97 and 78,270.00 is: 117,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,273.01 : 252,267.97 = 78,270.00 : x
  2. Step 2: Convert to fraction form
    168,273.01/252,267.97 = 78,270.00/x
  3. Step 3: Cross multiply
    168,273.01x = 252,267.97 × 78,270.00
  4. Step 4: Simplify right side
    168,273.01x = 19,745,013,016.98
  5. Step 5: Solve for x
    x = 19,745,013,016.98/168,273.01
  6. Step 6: Final answer
    x = 117,339.16

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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.