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Finding the Fourth Proportional to 264,012.66, 395,887.97 and 84,074.63

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Solution

The fourth proportional to 264,012.66, 395,887.97 and 84,074.63 is: 126,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,012.66 : 395,887.97 = 84,074.63 : x
  2. Step 2: Convert to fraction form
    264,012.66/395,887.97 = 84,074.63/x
  3. Step 3: Cross multiply
    264,012.66x = 395,887.97 × 84,074.63
  4. Step 4: Simplify right side
    264,012.66x = 33,284,135,799.11
  5. Step 5: Solve for x
    x = 33,284,135,799.11/264,012.66
  6. Step 6: Final answer
    x = 126,070.23

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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.