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Finding the Fourth Proportional to 197,187, 272,124.78 and 107,768.76

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Solution

The fourth proportional to 197,187, 272,124.78 and 107,768.76 is: 148,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,187 : 272,124.78 = 107,768.76 : x
  2. Step 2: Convert to fraction form
    197,187/272,124.78 = 107,768.76/x
  3. Step 3: Cross multiply
    197,187x = 272,124.78 × 107,768.76
  4. Step 4: Simplify right side
    197,187x = 29,326,550,105.87
  5. Step 5: Solve for x
    x = 29,326,550,105.87/197,187
  6. Step 6: Final answer
    x = 148,724.56

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