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Finding the Fourth Proportional to 223,796.17, 308,845.17 and 121,828.24

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Solution

The fourth proportional to 223,796.17, 308,845.17 and 121,828.24 is: 168,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,796.17 : 308,845.17 = 121,828.24 : x
  2. Step 2: Convert to fraction form
    223,796.17/308,845.17 = 121,828.24/x
  3. Step 3: Cross multiply
    223,796.17x = 308,845.17 × 121,828.24
  4. Step 4: Simplify right side
    223,796.17x = 37,626,063,493.60
  5. Step 5: Solve for x
    x = 37,626,063,493.60/223,796.17
  6. Step 6: Final answer
    x = 168,126.49

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1.5x scale

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.