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Finding the Fourth Proportional to 80,388.16, 110,942.40 and 46,856.32

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Solution

The fourth proportional to 80,388.16, 110,942.40 and 46,856.32 is: 64,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,388.16 : 110,942.40 = 46,856.32 : x
  2. Step 2: Convert to fraction form
    80,388.16/110,942.40 = 46,856.32/x
  3. Step 3: Cross multiply
    80,388.16x = 110,942.40 × 46,856.32
  4. Step 4: Simplify right side
    80,388.16x = 5,198,352,595.97
  5. Step 5: Solve for x
    x = 5,198,352,595.97/80,388.16
  6. Step 6: Final answer
    x = 64,665.65

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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.