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Finding the Fourth Proportional to 308,620.36, 462,967.53 and 108,899.47

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Solution

The fourth proportional to 308,620.36, 462,967.53 and 108,899.47 is: 163,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,620.36 : 462,967.53 = 108,899.47 : x
  2. Step 2: Convert to fraction form
    308,620.36/462,967.53 = 108,899.47/x
  3. Step 3: Cross multiply
    308,620.36x = 462,967.53 × 108,899.47
  4. Step 4: Simplify right side
    308,620.36x = 50,416,918,644.21
  5. Step 5: Solve for x
    x = 50,416,918,644.21/308,620.36
  6. Step 6: Final answer
    x = 163,362.26

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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.