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Finding the Fourth Proportional to 308,007.44, 425,030.28 and 178,934.48

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Solution

The fourth proportional to 308,007.44, 425,030.28 and 178,934.48 is: 246,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,007.44 : 425,030.28 = 178,934.48 : x
  2. Step 2: Convert to fraction form
    308,007.44/425,030.28 = 178,934.48/x
  3. Step 3: Cross multiply
    308,007.44x = 425,030.28 × 178,934.48
  4. Step 4: Simplify right side
    308,007.44x = 76,052,572,136.05
  5. Step 5: Solve for x
    x = 76,052,572,136.05/308,007.44
  6. Step 6: Final answer
    x = 246,917.97

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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.