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Finding the Fourth Proportional to 220,354.64, 330,472.92 and 95,666

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Solution

The fourth proportional to 220,354.64, 330,472.92 and 95,666 is: 143,473.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,354.64 : 330,472.92 = 95,666 : x
  2. Step 2: Convert to fraction form
    220,354.64/330,472.92 = 95,666/x
  3. Step 3: Cross multiply
    220,354.64x = 330,472.92 × 95,666
  4. Step 4: Simplify right side
    220,354.64x = 31,615,022,364.72
  5. Step 5: Solve for x
    x = 31,615,022,364.72/220,354.64
  6. Step 6: Final answer
    x = 143,473.37

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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.