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Finding the Fourth Proportional to 80,398.65, 110,932.40 and 46,399.92

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Solution

The fourth proportional to 80,398.65, 110,932.40 and 46,399.92 is: 64,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,398.65 : 110,932.40 = 46,399.92 : x
  2. Step 2: Convert to fraction form
    80,398.65/110,932.40 = 46,399.92/x
  3. Step 3: Cross multiply
    80,398.65x = 110,932.40 × 46,399.92
  4. Step 4: Simplify right side
    80,398.65x = 5,147,253,924.41
  5. Step 5: Solve for x
    x = 5,147,253,924.41/80,398.65
  6. Step 6: Final answer
    x = 64,021.64

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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.