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Finding the Fourth Proportional to 264,805.68, 397,234.44 and 87,240.24

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Solution

The fourth proportional to 264,805.68, 397,234.44 and 87,240.24 is: 130,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,805.68 : 397,234.44 = 87,240.24 : x
  2. Step 2: Convert to fraction form
    264,805.68/397,234.44 = 87,240.24/x
  3. Step 3: Cross multiply
    264,805.68x = 397,234.44 × 87,240.24
  4. Step 4: Simplify right side
    264,805.68x = 34,654,827,881.87
  5. Step 5: Solve for x
    x = 34,654,827,881.87/264,805.68
  6. Step 6: Final answer
    x = 130,868.90

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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.