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Finding the Fourth Proportional to 222,713.13, 307,351.35 and 125,919.86

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Solution

The fourth proportional to 222,713.13, 307,351.35 and 125,919.86 is: 173,773.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,713.13 : 307,351.35 = 125,919.86 : x
  2. Step 2: Convert to fraction form
    222,713.13/307,351.35 = 125,919.86/x
  3. Step 3: Cross multiply
    222,713.13x = 307,351.35 × 125,919.86
  4. Step 4: Simplify right side
    222,713.13x = 38,701,637,426.05
  5. Step 5: Solve for x
    x = 38,701,637,426.05/222,713.13
  6. Step 6: Final answer
    x = 173,773.49

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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.