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Finding the Fourth Proportional to 80,482.97, 120,747.50 and 38,953.37

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Solution

The fourth proportional to 80,482.97, 120,747.50 and 38,953.37 is: 58,441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,482.97 : 120,747.50 = 38,953.37 : x
  2. Step 2: Convert to fraction form
    80,482.97/120,747.50 = 38,953.37/x
  3. Step 3: Cross multiply
    80,482.97x = 120,747.50 × 38,953.37
  4. Step 4: Simplify right side
    80,482.97x = 4,703,521,849.31
  5. Step 5: Solve for x
    x = 4,703,521,849.31/80,482.97
  6. Step 6: Final answer
    x = 58,441.21

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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.