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Finding the Fourth Proportional to 222,960.43, 307,597.81 and 127,415.87

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Solution

The fourth proportional to 222,960.43, 307,597.81 and 127,415.87 is: 175,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,960.43 : 307,597.81 = 127,415.87 : x
  2. Step 2: Convert to fraction form
    222,960.43/307,597.81 = 127,415.87/x
  3. Step 3: Cross multiply
    222,960.43x = 307,597.81 × 127,415.87
  4. Step 4: Simplify right side
    222,960.43x = 39,192,842,252.71
  5. Step 5: Solve for x
    x = 39,192,842,252.71/222,960.43
  6. Step 6: Final answer
    x = 175,783.85

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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.