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Finding the Fourth Proportional to 308,003.10, 461,961.45 and 97,662.30

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Solution

The fourth proportional to 308,003.10, 461,961.45 and 97,662.30 is: 146,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,003.10 : 461,961.45 = 97,662.30 : x
  2. Step 2: Convert to fraction form
    308,003.10/461,961.45 = 97,662.30/x
  3. Step 3: Cross multiply
    308,003.10x = 461,961.45 × 97,662.30
  4. Step 4: Simplify right side
    308,003.10x = 45,116,217,718.34
  5. Step 5: Solve for x
    x = 45,116,217,718.34/308,003.10
  6. Step 6: Final answer
    x = 146,479.75

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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.