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Finding the Fourth Proportional to 222,411.56, 333,679.50 and 89,385.16

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Solution

The fourth proportional to 222,411.56, 333,679.50 and 89,385.16 is: 134,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,411.56 : 333,679.50 = 89,385.16 : x
  2. Step 2: Convert to fraction form
    222,411.56/333,679.50 = 89,385.16/x
  3. Step 3: Cross multiply
    222,411.56x = 333,679.50 × 89,385.16
  4. Step 4: Simplify right side
    222,411.56x = 29,825,995,496.22
  5. Step 5: Solve for x
    x = 29,825,995,496.22/222,411.56
  6. Step 6: Final answer
    x = 134,102.72

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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.