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Finding the Fourth Proportional to 101,187.67, 151,788.84 and 38,858.17

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Solution

The fourth proportional to 101,187.67, 151,788.84 and 38,858.17 is: 58,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,187.67 : 151,788.84 = 38,858.17 : x
  2. Step 2: Convert to fraction form
    101,187.67/151,788.84 = 38,858.17/x
  3. Step 3: Cross multiply
    101,187.67x = 151,788.84 × 38,858.17
  4. Step 4: Simplify right side
    101,187.67x = 5,898,236,548.82
  5. Step 5: Solve for x
    x = 5,898,236,548.82/101,187.67
  6. Step 6: Final answer
    x = 58,290.07

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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.