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Finding the Fourth Proportional to 240,896.88, 361,378.49 and 80,985.22

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Solution

The fourth proportional to 240,896.88, 361,378.49 and 80,985.22 is: 121,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,896.88 : 361,378.49 = 80,985.22 : x
  2. Step 2: Convert to fraction form
    240,896.88/361,378.49 = 80,985.22/x
  3. Step 3: Cross multiply
    240,896.88x = 361,378.49 × 80,985.22
  4. Step 4: Simplify right side
    240,896.88x = 29,266,316,515.92
  5. Step 5: Solve for x
    x = 29,266,316,515.92/240,896.88
  6. Step 6: Final answer
    x = 121,488.98

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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.