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Finding the Fourth Proportional to 115,063.06, 158,786.62 and 64,076.44

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Solution

The fourth proportional to 115,063.06, 158,786.62 and 64,076.44 is: 88,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,063.06 : 158,786.62 = 64,076.44 : x
  2. Step 2: Convert to fraction form
    115,063.06/158,786.62 = 64,076.44/x
  3. Step 3: Cross multiply
    115,063.06x = 158,786.62 × 64,076.44
  4. Step 4: Simplify right side
    115,063.06x = 10,174,481,329.23
  5. Step 5: Solve for x
    x = 10,174,481,329.23/115,063.06
  6. Step 6: Final answer
    x = 88,425.26

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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.