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Finding the Fourth Proportional to 159,958.31, 239,856.93 and 53,304.48

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Solution

The fourth proportional to 159,958.31, 239,856.93 and 53,304.48 is: 79,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,958.31 : 239,856.93 = 53,304.48 : x
  2. Step 2: Convert to fraction form
    159,958.31/239,856.93 = 53,304.48/x
  3. Step 3: Cross multiply
    159,958.31x = 239,856.93 × 53,304.48
  4. Step 4: Simplify right side
    159,958.31x = 12,785,448,928.05
  5. Step 5: Solve for x
    x = 12,785,448,928.05/159,958.31
  6. Step 6: Final answer
    x = 79,929.89

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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.