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Finding the Fourth Proportional to 159,959.56, 239,914.73 and 53,345.38

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Solution

The fourth proportional to 159,959.56, 239,914.73 and 53,345.38 is: 80,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,959.56 : 239,914.73 = 53,345.38 : x
  2. Step 2: Convert to fraction form
    159,959.56/239,914.73 = 53,345.38/x
  3. Step 3: Cross multiply
    159,959.56x = 239,914.73 × 53,345.38
  4. Step 4: Simplify right side
    159,959.56x = 12,798,342,439.45
  5. Step 5: Solve for x
    x = 12,798,342,439.45/159,959.56
  6. Step 6: Final answer
    x = 80,009.86

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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.