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Finding the Fourth Proportional to 185,228.78, 255,615.75 and 108,732.78

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Solution

The fourth proportional to 185,228.78, 255,615.75 and 108,732.78 is: 150,051.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,228.78 : 255,615.75 = 108,732.78 : x
  2. Step 2: Convert to fraction form
    185,228.78/255,615.75 = 108,732.78/x
  3. Step 3: Cross multiply
    185,228.78x = 255,615.75 × 108,732.78
  4. Step 4: Simplify right side
    185,228.78x = 27,793,811,109.29
  5. Step 5: Solve for x
    x = 27,793,811,109.29/185,228.78
  6. Step 6: Final answer
    x = 150,051.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.