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Finding the Fourth Proportional to 111,754.83, 154,219.32 and 60,768.57

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Solution

The fourth proportional to 111,754.83, 154,219.32 and 60,768.57 is: 83,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,754.83 : 154,219.32 = 60,768.57 : x
  2. Step 2: Convert to fraction form
    111,754.83/154,219.32 = 60,768.57/x
  3. Step 3: Cross multiply
    111,754.83x = 154,219.32 × 60,768.57
  4. Step 4: Simplify right side
    111,754.83x = 9,371,687,542.77
  5. Step 5: Solve for x
    x = 9,371,687,542.77/111,754.83
  6. Step 6: Final answer
    x = 83,859.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.