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Finding the Fourth Proportional to 159,995.88, 239,913.15 and 53,341.98

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Solution

The fourth proportional to 159,995.88, 239,913.15 and 53,341.98 is: 79,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,995.88 : 239,913.15 = 53,341.98 : x
  2. Step 2: Convert to fraction form
    159,995.88/239,913.15 = 53,341.98/x
  3. Step 3: Cross multiply
    159,995.88x = 239,913.15 × 53,341.98
  4. Step 4: Simplify right side
    159,995.88x = 12,797,442,449.04
  5. Step 5: Solve for x
    x = 12,797,442,449.04/159,995.88
  6. Step 6: Final answer
    x = 79,986.07

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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.