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Finding the Fourth Proportional to 101,188.68, 151,790.34 and 38,859.18

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Solution

The fourth proportional to 101,188.68, 151,790.34 and 38,859.18 is: 58,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188.68 : 151,790.34 = 38,859.18 : x
  2. Step 2: Convert to fraction form
    101,188.68/151,790.34 = 38,859.18/x
  3. Step 3: Cross multiply
    101,188.68x = 151,790.34 × 38,859.18
  4. Step 4: Simplify right side
    101,188.68x = 5,898,448,144.32
  5. Step 5: Solve for x
    x = 5,898,448,144.32/101,188.68
  6. Step 6: Final answer
    x = 58,291.58

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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.