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Finding the Fourth Proportional to 114,755.64, 172,063 and 39,843.60

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Solution

The fourth proportional to 114,755.64, 172,063 and 39,843.60 is: 59,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,755.64 : 172,063 = 39,843.60 : x
  2. Step 2: Convert to fraction form
    114,755.64/172,063 = 39,843.60/x
  3. Step 3: Cross multiply
    114,755.64x = 172,063 × 39,843.60
  4. Step 4: Simplify right side
    114,755.64x = 6,855,609,346.80
  5. Step 5: Solve for x
    x = 6,855,609,346.80/114,755.64
  6. Step 6: Final answer
    x = 59,740.94

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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.