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Finding the Fourth Proportional to 199,620.56, 299,330.40 and 66,453.32

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Solution

The fourth proportional to 199,620.56, 299,330.40 and 66,453.32 is: 99,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,620.56 : 299,330.40 = 66,453.32 : x
  2. Step 2: Convert to fraction form
    199,620.56/299,330.40 = 66,453.32/x
  3. Step 3: Cross multiply
    199,620.56x = 299,330.40 × 66,453.32
  4. Step 4: Simplify right side
    199,620.56x = 19,891,498,856.93
  5. Step 5: Solve for x
    x = 19,891,498,856.93/199,620.56
  6. Step 6: Final answer
    x = 99,646.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.