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Finding the Fourth Proportional to 199,364.72, 299,097.44 and 66,245.68

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Solution

The fourth proportional to 199,364.72, 299,097.44 and 66,245.68 is: 99,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,364.72 : 299,097.44 = 66,245.68 : x
  2. Step 2: Convert to fraction form
    199,364.72/299,097.44 = 66,245.68/x
  3. Step 3: Cross multiply
    199,364.72x = 299,097.44 × 66,245.68
  4. Step 4: Simplify right side
    199,364.72x = 19,813,913,299.06
  5. Step 5: Solve for x
    x = 19,813,913,299.06/199,364.72
  6. Step 6: Final answer
    x = 99,385.25

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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.