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Finding the Fourth Proportional to 159,995.38, 239,912.40 and 53,341.48

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Solution

The fourth proportional to 159,995.38, 239,912.40 and 53,341.48 is: 79,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,995.38 : 239,912.40 = 53,341.48 : x
  2. Step 2: Convert to fraction form
    159,995.38/239,912.40 = 53,341.48/x
  3. Step 3: Cross multiply
    159,995.38x = 239,912.40 × 53,341.48
  4. Step 4: Simplify right side
    159,995.38x = 12,797,282,486.35
  5. Step 5: Solve for x
    x = 12,797,282,486.35/159,995.38
  6. Step 6: Final answer
    x = 79,985.33

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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.