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Finding the Fourth Proportional to 197,932, 273,146.16 and 108,508

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Solution

The fourth proportional to 197,932, 273,146.16 and 108,508 is: 149,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,932 : 273,146.16 = 108,508 : x
  2. Step 2: Convert to fraction form
    197,932/273,146.16 = 108,508/x
  3. Step 3: Cross multiply
    197,932x = 273,146.16 × 108,508
  4. Step 4: Simplify right side
    197,932x = 29,638,543,529.28
  5. Step 5: Solve for x
    x = 29,638,543,529.28/197,932
  6. Step 6: Final answer
    x = 149,741.04

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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.