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Finding the Fourth Proportional to 114,755.90, 172,063.37 and 39,843.86

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Solution

The fourth proportional to 114,755.90, 172,063.37 and 39,843.86 is: 59,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,755.90 : 172,063.37 = 39,843.86 : x
  2. Step 2: Convert to fraction form
    114,755.90/172,063.37 = 39,843.86/x
  3. Step 3: Cross multiply
    114,755.90x = 172,063.37 × 39,843.86
  4. Step 4: Simplify right side
    114,755.90x = 6,855,668,064.70
  5. Step 5: Solve for x
    x = 6,855,668,064.70/114,755.90
  6. Step 6: Final answer
    x = 59,741.31

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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.