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Finding the Fourth Proportional to 95,979.40, 144,033.90 and 53,859.40

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Solution

The fourth proportional to 95,979.40, 144,033.90 and 53,859.40 is: 80,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,979.40 : 144,033.90 = 53,859.40 : x
  2. Step 2: Convert to fraction form
    95,979.40/144,033.90 = 53,859.40/x
  3. Step 3: Cross multiply
    95,979.40x = 144,033.90 × 53,859.40
  4. Step 4: Simplify right side
    95,979.40x = 7,757,579,433.66
  5. Step 5: Solve for x
    x = 7,757,579,433.66/95,979.40
  6. Step 6: Final answer
    x = 80,825.46

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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.