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Finding the Fourth Proportional to 80,073.65, 120,124.44 and 35,699.42

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Solution

The fourth proportional to 80,073.65, 120,124.44 and 35,699.42 is: 53,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,073.65 : 120,124.44 = 35,699.42 : x
  2. Step 2: Convert to fraction form
    80,073.65/120,124.44 = 35,699.42/x
  3. Step 3: Cross multiply
    80,073.65x = 120,124.44 × 35,699.42
  4. Step 4: Simplify right side
    80,073.65x = 4,288,372,235.20
  5. Step 5: Solve for x
    x = 4,288,372,235.20/80,073.65
  6. Step 6: Final answer
    x = 53,555.35

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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.