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Finding the Fourth Proportional to 308,077.20, 462,164.40 and 97,736.40

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Solution

The fourth proportional to 308,077.20, 462,164.40 and 97,736.40 is: 146,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,077.20 : 462,164.40 = 97,736.40 : x
  2. Step 2: Convert to fraction form
    308,077.20/462,164.40 = 97,736.40/x
  3. Step 3: Cross multiply
    308,077.20x = 462,164.40 × 97,736.40
  4. Step 4: Simplify right side
    308,077.20x = 45,170,284,664.16
  5. Step 5: Solve for x
    x = 45,170,284,664.16/308,077.20
  6. Step 6: Final answer
    x = 146,620.02

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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.