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Finding the Fourth Proportional to 259,081.98, 388,244.98 and 114,813.79

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Solution

The fourth proportional to 259,081.98, 388,244.98 and 114,813.79 is: 172,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,081.98 : 388,244.98 = 114,813.79 : x
  2. Step 2: Convert to fraction form
    259,081.98/388,244.98 = 114,813.79/x
  3. Step 3: Cross multiply
    259,081.98x = 388,244.98 × 114,813.79
  4. Step 4: Simplify right side
    259,081.98x = 44,575,876,775.18
  5. Step 5: Solve for x
    x = 44,575,876,775.18/259,081.98
  6. Step 6: Final answer
    x = 172,053.18

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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.