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Finding the Fourth Proportional to 88,789, 133,202.96 and 33,385

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Solution

The fourth proportional to 88,789, 133,202.96 and 33,385 is: 50,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,789 : 133,202.96 = 33,385 : x
  2. Step 2: Convert to fraction form
    88,789/133,202.96 = 33,385/x
  3. Step 3: Cross multiply
    88,789x = 133,202.96 × 33,385
  4. Step 4: Simplify right side
    88,789x = 4,446,980,819.60
  5. Step 5: Solve for x
    x = 4,446,980,819.60/88,789
  6. Step 6: Final answer
    x = 50,084.82

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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.