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Finding the Fourth Proportional to 248,807.11, 373,199.32 and 80,335.21

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Solution

The fourth proportional to 248,807.11, 373,199.32 and 80,335.21 is: 120,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,807.11 : 373,199.32 = 80,335.21 : x
  2. Step 2: Convert to fraction form
    248,807.11/373,199.32 = 80,335.21/x
  3. Step 3: Cross multiply
    248,807.11x = 373,199.32 × 80,335.21
  4. Step 4: Simplify right side
    248,807.11x = 29,981,045,744.06
  5. Step 5: Solve for x
    x = 29,981,045,744.06/248,807.11
  6. Step 6: Final answer
    x = 120,499.15

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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.