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Finding the Fourth Proportional to 114,754.20, 158,357.62 and 63,765.61

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Solution

The fourth proportional to 114,754.20, 158,357.62 and 63,765.61 is: 87,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,754.20 : 158,357.62 = 63,765.61 : x
  2. Step 2: Convert to fraction form
    114,754.20/158,357.62 = 63,765.61/x
  3. Step 3: Cross multiply
    114,754.20x = 158,357.62 × 63,765.61
  4. Step 4: Simplify right side
    114,754.20x = 10,097,769,921.26
  5. Step 5: Solve for x
    x = 10,097,769,921.26/114,754.20
  6. Step 6: Final answer
    x = 87,994.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.