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Finding the Fourth Proportional to 109,954.67, 151,740.54 and 61,555.14

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Solution

The fourth proportional to 109,954.67, 151,740.54 and 61,555.14 is: 84,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,954.67 : 151,740.54 = 61,555.14 : x
  2. Step 2: Convert to fraction form
    109,954.67/151,740.54 = 61,555.14/x
  3. Step 3: Cross multiply
    109,954.67x = 151,740.54 × 61,555.14
  4. Step 4: Simplify right side
    109,954.67x = 9,340,410,183.38
  5. Step 5: Solve for x
    x = 9,340,410,183.38/109,954.67
  6. Step 6: Final answer
    x = 84,947.83

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1.5x scale

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.