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Finding the Fourth Proportional to 117,251.20, 175,747.20 and 64,698.40

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Solution

The fourth proportional to 117,251.20, 175,747.20 and 64,698.40 is: 96,976.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,251.20 : 175,747.20 = 64,698.40 : x
  2. Step 2: Convert to fraction form
    117,251.20/175,747.20 = 64,698.40/x
  3. Step 3: Cross multiply
    117,251.20x = 175,747.20 × 64,698.40
  4. Step 4: Simplify right side
    117,251.20x = 11,370,562,644.48
  5. Step 5: Solve for x
    x = 11,370,562,644.48/117,251.20
  6. Step 6: Final answer
    x = 96,976.09

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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.