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Finding the Fourth Proportional to 224,620.52, 309,973.94 and 122,645.66

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Solution

The fourth proportional to 224,620.52, 309,973.94 and 122,645.66 is: 169,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,620.52 : 309,973.94 = 122,645.66 : x
  2. Step 2: Convert to fraction form
    224,620.52/309,973.94 = 122,645.66/x
  3. Step 3: Cross multiply
    224,620.52x = 309,973.94 × 122,645.66
  4. Step 4: Simplify right side
    224,620.52x = 38,016,959,075.73
  5. Step 5: Solve for x
    x = 38,016,959,075.73/224,620.52
  6. Step 6: Final answer
    x = 169,249.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.