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Finding the Fourth Proportional to 101,212.79, 151,840.59 and 38,033.46

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Solution

The fourth proportional to 101,212.79, 151,840.59 and 38,033.46 is: 57,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,212.79 : 151,840.59 = 38,033.46 : x
  2. Step 2: Convert to fraction form
    101,212.79/151,840.59 = 38,033.46/x
  3. Step 3: Cross multiply
    101,212.79x = 151,840.59 × 38,033.46
  4. Step 4: Simplify right side
    101,212.79x = 5,775,022,815.97
  5. Step 5: Solve for x
    x = 5,775,022,815.97/101,212.79
  6. Step 6: Final answer
    x = 57,058.23

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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.