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Finding the Fourth Proportional to 224,620.35, 309,973.71 and 122,645.49

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Solution

The fourth proportional to 224,620.35, 309,973.71 and 122,645.49 is: 169,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,620.35 : 309,973.71 = 122,645.49 : x
  2. Step 2: Convert to fraction form
    224,620.35/309,973.71 = 122,645.49/x
  3. Step 3: Cross multiply
    224,620.35x = 309,973.71 × 122,645.49
  4. Step 4: Simplify right side
    224,620.35x = 38,016,877,550.07
  5. Step 5: Solve for x
    x = 38,016,877,550.07/224,620.35
  6. Step 6: Final answer
    x = 169,249.48

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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.