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Finding the Fourth Proportional to 101,918.58, 152,797.41 and 64,399.47

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Solution

The fourth proportional to 101,918.58, 152,797.41 and 64,399.47 is: 96,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,918.58 : 152,797.41 = 64,399.47 : x
  2. Step 2: Convert to fraction form
    101,918.58/152,797.41 = 64,399.47/x
  3. Step 3: Cross multiply
    101,918.58x = 152,797.41 × 64,399.47
  4. Step 4: Simplify right side
    101,918.58x = 9,840,072,221.37
  5. Step 5: Solve for x
    x = 9,840,072,221.37/101,918.58
  6. Step 6: Final answer
    x = 96,548.36

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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.