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Finding the Fourth Proportional to 161,794.80, 242,634.60 and 73,090.80

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Solution

The fourth proportional to 161,794.80, 242,634.60 and 73,090.80 is: 109,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,794.80 : 242,634.60 = 73,090.80 : x
  2. Step 2: Convert to fraction form
    161,794.80/242,634.60 = 73,090.80/x
  3. Step 3: Cross multiply
    161,794.80x = 242,634.60 × 73,090.80
  4. Step 4: Simplify right side
    161,794.80x = 17,734,357,021.68
  5. Step 5: Solve for x
    x = 17,734,357,021.68/161,794.80
  6. Step 6: Final answer
    x = 109,610.18

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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.