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Finding the Fourth Proportional to 158,989.56, 238,469.76 and 53,796.48

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Solution

The fourth proportional to 158,989.56, 238,469.76 and 53,796.48 is: 80,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,989.56 : 238,469.76 = 53,796.48 : x
  2. Step 2: Convert to fraction form
    158,989.56/238,469.76 = 53,796.48/x
  3. Step 3: Cross multiply
    158,989.56x = 238,469.76 × 53,796.48
  4. Step 4: Simplify right side
    158,989.56x = 12,828,833,674.44
  5. Step 5: Solve for x
    x = 12,828,833,674.44/158,989.56
  6. Step 6: Final answer
    x = 80,689.79

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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.