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Finding the Fourth Proportional to 192,482.38, 288,651.66 and 66,086.74

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Solution

The fourth proportional to 192,482.38, 288,651.66 and 66,086.74 is: 99,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,482.38 : 288,651.66 = 66,086.74 : x
  2. Step 2: Convert to fraction form
    192,482.38/288,651.66 = 66,086.74/x
  3. Step 3: Cross multiply
    192,482.38x = 288,651.66 × 66,086.74
  4. Step 4: Simplify right side
    192,482.38x = 19,076,047,204.99
  5. Step 5: Solve for x
    x = 19,076,047,204.99/192,482.38
  6. Step 6: Final answer
    x = 99,105.42

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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.