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Finding the Fourth Proportional to 127,850.84, 191,757.77 and 39,080.51

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Solution

The fourth proportional to 127,850.84, 191,757.77 and 39,080.51 is: 58,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.84 : 191,757.77 = 39,080.51 : x
  2. Step 2: Convert to fraction form
    127,850.84/191,757.77 = 39,080.51/x
  3. Step 3: Cross multiply
    127,850.84x = 191,757.77 × 39,080.51
  4. Step 4: Simplify right side
    127,850.84x = 7,493,991,448.06
  5. Step 5: Solve for x
    x = 7,493,991,448.06/127,850.84
  6. Step 6: Final answer
    x = 58,615.11

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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.