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Finding the Fourth Proportional to 308,371.64, 462,732.44 and 121,514.36

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Solution

The fourth proportional to 308,371.64, 462,732.44 and 121,514.36 is: 182,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,371.64 : 462,732.44 = 121,514.36 : x
  2. Step 2: Convert to fraction form
    308,371.64/462,732.44 = 121,514.36/x
  3. Step 3: Cross multiply
    308,371.64x = 462,732.44 × 121,514.36
  4. Step 4: Simplify right side
    308,371.64x = 56,228,633,376.60
  5. Step 5: Solve for x
    x = 56,228,633,376.60/308,371.64
  6. Step 6: Final answer
    x = 182,340.48

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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.