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Finding the Fourth Proportional to 243,843.48, 336,481.18 and 151,954.25

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Solution

The fourth proportional to 243,843.48, 336,481.18 and 151,954.25 is: 209,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,843.48 : 336,481.18 = 151,954.25 : x
  2. Step 2: Convert to fraction form
    243,843.48/336,481.18 = 151,954.25/x
  3. Step 3: Cross multiply
    243,843.48x = 336,481.18 × 151,954.25
  4. Step 4: Simplify right side
    243,843.48x = 51,129,743,663.61
  5. Step 5: Solve for x
    x = 51,129,743,663.61/243,843.48
  6. Step 6: Final answer
    x = 209,682.64

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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.