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Finding the Fourth Proportional to 199,783.44, 299,574.84 and 66,616.56

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Solution

The fourth proportional to 199,783.44, 299,574.84 and 66,616.56 is: 99,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,783.44 : 299,574.84 = 66,616.56 : x
  2. Step 2: Convert to fraction form
    199,783.44/299,574.84 = 66,616.56/x
  3. Step 3: Cross multiply
    199,783.44x = 299,574.84 × 66,616.56
  4. Step 4: Simplify right side
    199,783.44x = 19,956,645,303.35
  5. Step 5: Solve for x
    x = 19,956,645,303.35/199,783.44
  6. Step 6: Final answer
    x = 99,891.39

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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.