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Finding the Fourth Proportional to 159,687.72, 239,033.36 and 117,615.31

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Solution

The fourth proportional to 159,687.72, 239,033.36 and 117,615.31 is: 176,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,687.72 : 239,033.36 = 117,615.31 : x
  2. Step 2: Convert to fraction form
    159,687.72/239,033.36 = 117,615.31/x
  3. Step 3: Cross multiply
    159,687.72x = 239,033.36 × 117,615.31
  4. Step 4: Simplify right side
    159,687.72x = 28,113,982,433.20
  5. Step 5: Solve for x
    x = 28,113,982,433.20/159,687.72
  6. Step 6: Final answer
    x = 176,056.01

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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.