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Finding the Fourth Proportional to 223,366, 308,245.08 and 122,764

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Solution

The fourth proportional to 223,366, 308,245.08 and 122,764 is: 169,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,366 : 308,245.08 = 122,764 : x
  2. Step 2: Convert to fraction form
    223,366/308,245.08 = 122,764/x
  3. Step 3: Cross multiply
    223,366x = 308,245.08 × 122,764
  4. Step 4: Simplify right side
    223,366x = 37,841,399,001.12
  5. Step 5: Solve for x
    x = 37,841,399,001.12/223,366
  6. Step 6: Final answer
    x = 169,414.32

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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.