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Finding the Fourth Proportional to 222,885.43, 307,603.11 and 127,373.61

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Solution

The fourth proportional to 222,885.43, 307,603.11 and 127,373.61 is: 175,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,885.43 : 307,603.11 = 127,373.61 : x
  2. Step 2: Convert to fraction form
    222,885.43/307,603.11 = 127,373.61/x
  3. Step 3: Cross multiply
    222,885.43x = 307,603.11 × 127,373.61
  4. Step 4: Simplify right side
    222,885.43x = 39,180,518,567.93
  5. Step 5: Solve for x
    x = 39,180,518,567.93/222,885.43
  6. Step 6: Final answer
    x = 175,787.71

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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.