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Finding the Fourth Proportional to 258,398.64, 356,687.56 and 151,003.58

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Solution

The fourth proportional to 258,398.64, 356,687.56 and 151,003.58 is: 208,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,398.64 : 356,687.56 = 151,003.58 : x
  2. Step 2: Convert to fraction form
    258,398.64/356,687.56 = 151,003.58/x
  3. Step 3: Cross multiply
    258,398.64x = 356,687.56 × 151,003.58
  4. Step 4: Simplify right side
    258,398.64x = 53,861,097,232.24
  5. Step 5: Solve for x
    x = 53,861,097,232.24/258,398.64
  6. Step 6: Final answer
    x = 208,441.87

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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.