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Finding the Fourth Proportional to 73,150.56, 100,947.60 and 39,616.56

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Solution

The fourth proportional to 73,150.56, 100,947.60 and 39,616.56 is: 54,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,150.56 : 100,947.60 = 39,616.56 : x
  2. Step 2: Convert to fraction form
    73,150.56/100,947.60 = 39,616.56/x
  3. Step 3: Cross multiply
    73,150.56x = 100,947.60 × 39,616.56
  4. Step 4: Simplify right side
    73,150.56x = 3,999,196,652.26
  5. Step 5: Solve for x
    x = 3,999,196,652.26/73,150.56
  6. Step 6: Final answer
    x = 54,670.76

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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.