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Finding the Fourth Proportional to 199,591.56, 299,423.52 and 66,458.88

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Solution

The fourth proportional to 199,591.56, 299,423.52 and 66,458.88 is: 99,700.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,591.56 : 299,423.52 = 66,458.88 : x
  2. Step 2: Convert to fraction form
    199,591.56/299,423.52 = 66,458.88/x
  3. Step 3: Cross multiply
    199,591.56x = 299,423.52 × 66,458.88
  4. Step 4: Simplify right side
    199,591.56x = 19,899,351,784.86
  5. Step 5: Solve for x
    x = 19,899,351,784.86/199,591.56
  6. Step 6: Final answer
    x = 99,700.37

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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.