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Finding the Fourth Proportional to 236,661, 355,043.34 and 88,917

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Solution

The fourth proportional to 236,661, 355,043.34 and 88,917 is: 133,394.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,661 : 355,043.34 = 88,917 : x
  2. Step 2: Convert to fraction form
    236,661/355,043.34 = 88,917/x
  3. Step 3: Cross multiply
    236,661x = 355,043.34 × 88,917
  4. Step 4: Simplify right side
    236,661x = 31,569,388,662.78
  5. Step 5: Solve for x
    x = 31,569,388,662.78/236,661
  6. Step 6: Final answer
    x = 133,394.98

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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.