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Finding the Fourth Proportional to 159,335.53, 239,009.90 and 47,015.75

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Solution

The fourth proportional to 159,335.53, 239,009.90 and 47,015.75 is: 70,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,335.53 : 239,009.90 = 47,015.75 : x
  2. Step 2: Convert to fraction form
    159,335.53/239,009.90 = 47,015.75/x
  3. Step 3: Cross multiply
    159,335.53x = 239,009.90 × 47,015.75
  4. Step 4: Simplify right side
    159,335.53x = 11,237,229,470.85
  5. Step 5: Solve for x
    x = 11,237,229,470.85/159,335.53
  6. Step 6: Final answer
    x = 70,525.57

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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.