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Finding the Fourth Proportional to 101,297.78, 151,923.60 and 38,124.57

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Solution

The fourth proportional to 101,297.78, 151,923.60 and 38,124.57 is: 57,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,297.78 : 151,923.60 = 38,124.57 : x
  2. Step 2: Convert to fraction form
    101,297.78/151,923.60 = 38,124.57/x
  3. Step 3: Cross multiply
    101,297.78x = 151,923.60 × 38,124.57
  4. Step 4: Simplify right side
    101,297.78x = 5,792,022,492.57
  5. Step 5: Solve for x
    x = 5,792,022,492.57/101,297.78
  6. Step 6: Final answer
    x = 57,178.18

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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.