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Finding the Fourth Proportional to 172,889.69, 259,208.55 and 116,589.93

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Solution

The fourth proportional to 172,889.69, 259,208.55 and 116,589.93 is: 174,799.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,889.69 : 259,208.55 = 116,589.93 : x
  2. Step 2: Convert to fraction form
    172,889.69/259,208.55 = 116,589.93/x
  3. Step 3: Cross multiply
    172,889.69x = 259,208.55 × 116,589.93
  4. Step 4: Simplify right side
    172,889.69x = 30,221,104,820.91
  5. Step 5: Solve for x
    x = 30,221,104,820.91/172,889.69
  6. Step 6: Final answer
    x = 174,799.93

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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.