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Finding the Fourth Proportional to 308,132.40, 462,673.80 and 168,164.40

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Solution

The fourth proportional to 308,132.40, 462,673.80 and 168,164.40 is: 252,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,132.40 : 462,673.80 = 168,164.40 : x
  2. Step 2: Convert to fraction form
    308,132.40/462,673.80 = 168,164.40/x
  3. Step 3: Cross multiply
    308,132.40x = 462,673.80 × 168,164.40
  4. Step 4: Simplify right side
    308,132.40x = 77,805,261,972.72
  5. Step 5: Solve for x
    x = 77,805,261,972.72/308,132.40
  6. Step 6: Final answer
    x = 252,505.94

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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.