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Finding the Fourth Proportional to 80,922.99, 111,633.62 and 54,073.92

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Solution

The fourth proportional to 80,922.99, 111,633.62 and 54,073.92 is: 74,595.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,922.99 : 111,633.62 = 54,073.92 : x
  2. Step 2: Convert to fraction form
    80,922.99/111,633.62 = 54,073.92/x
  3. Step 3: Cross multiply
    80,922.99x = 111,633.62 × 54,073.92
  4. Step 4: Simplify right side
    80,922.99x = 6,036,467,166.82
  5. Step 5: Solve for x
    x = 6,036,467,166.82/80,922.99
  6. Step 6: Final answer
    x = 74,595.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.