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Finding the Fourth Proportional to 199,441.44, 299,164.79 and 66,321.72

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Solution

The fourth proportional to 199,441.44, 299,164.79 and 66,321.72 is: 99,483.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,441.44 : 299,164.79 = 66,321.72 : x
  2. Step 2: Convert to fraction form
    199,441.44/299,164.79 = 66,321.72/x
  3. Step 3: Cross multiply
    199,441.44x = 299,164.79 × 66,321.72
  4. Step 4: Simplify right side
    199,441.44x = 19,841,123,602.04
  5. Step 5: Solve for x
    x = 19,841,123,602.04/199,441.44
  6. Step 6: Final answer
    x = 99,483.46

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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.