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Finding the Fourth Proportional to 222,070.92, 332,986.38 and 115,189.92

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Solution

The fourth proportional to 222,070.92, 332,986.38 and 115,189.92 is: 172,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,070.92 : 332,986.38 = 115,189.92 : x
  2. Step 2: Convert to fraction form
    222,070.92/332,986.38 = 115,189.92/x
  3. Step 3: Cross multiply
    222,070.92x = 332,986.38 × 115,189.92
  4. Step 4: Simplify right side
    222,070.92x = 38,356,674,473.29
  5. Step 5: Solve for x
    x = 38,356,674,473.29/222,070.92
  6. Step 6: Final answer
    x = 172,722.64

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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.