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Finding the Fourth Proportional to 264,808.68, 397,238.94 and 87,243.24

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Solution

The fourth proportional to 264,808.68, 397,238.94 and 87,243.24 is: 130,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,808.68 : 397,238.94 = 87,243.24 : x
  2. Step 2: Convert to fraction form
    264,808.68/397,238.94 = 87,243.24/x
  3. Step 3: Cross multiply
    264,808.68x = 397,238.94 × 87,243.24
  4. Step 4: Simplify right side
    264,808.68x = 34,656,412,179.77
  5. Step 5: Solve for x
    x = 34,656,412,179.77/264,808.68
  6. Step 6: Final answer
    x = 130,873.40

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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.