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Finding the Fourth Proportional to 222,487.80, 333,827.70 and 129,073.40

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Solution

The fourth proportional to 222,487.80, 333,827.70 and 129,073.40 is: 193,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,487.80 : 333,827.70 = 129,073.40 : x
  2. Step 2: Convert to fraction form
    222,487.80/333,827.70 = 129,073.40/x
  3. Step 3: Cross multiply
    222,487.80x = 333,827.70 × 129,073.40
  4. Step 4: Simplify right side
    222,487.80x = 43,088,276,253.18
  5. Step 5: Solve for x
    x = 43,088,276,253.18/222,487.80
  6. Step 6: Final answer
    x = 193,665.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.