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Finding the Fourth Proportional to 101,186.31, 151,858.77 and 70,592.48

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Solution

The fourth proportional to 101,186.31, 151,858.77 and 70,592.48 is: 105,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,186.31 : 151,858.77 = 70,592.48 : x
  2. Step 2: Convert to fraction form
    101,186.31/151,858.77 = 70,592.48/x
  3. Step 3: Cross multiply
    101,186.31x = 151,858.77 × 70,592.48
  4. Step 4: Simplify right side
    101,186.31x = 10,720,086,831.09
  5. Step 5: Solve for x
    x = 10,720,086,831.09/101,186.31
  6. Step 6: Final answer
    x = 105,944.04

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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.