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Finding the Fourth Proportional to 308,164.66, 462,270.21 and 92,006.28

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Solution

The fourth proportional to 308,164.66, 462,270.21 and 92,006.28 is: 138,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,164.66 : 462,270.21 = 92,006.28 : x
  2. Step 2: Convert to fraction form
    308,164.66/462,270.21 = 92,006.28/x
  3. Step 3: Cross multiply
    308,164.66x = 462,270.21 × 92,006.28
  4. Step 4: Simplify right side
    308,164.66x = 42,531,762,376.92
  5. Step 5: Solve for x
    x = 42,531,762,376.92/308,164.66
  6. Step 6: Final answer
    x = 138,016.35

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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.