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Finding the Fourth Proportional to 112,488.87, 168,816.21 and 53,324.31

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Solution

The fourth proportional to 112,488.87, 168,816.21 and 53,324.31 is: 80,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,488.87 : 168,816.21 = 53,324.31 : x
  2. Step 2: Convert to fraction form
    112,488.87/168,816.21 = 53,324.31/x
  3. Step 3: Cross multiply
    112,488.87x = 168,816.21 × 53,324.31
  4. Step 4: Simplify right side
    112,488.87x = 9,002,007,648.44
  5. Step 5: Solve for x
    x = 9,002,007,648.44/112,488.87
  6. Step 6: Final answer
    x = 80,025.76

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1.5x scale

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.