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Finding the Fourth Proportional to 188,000.91, 281,935.67 and 75,651.98

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Solution

The fourth proportional to 188,000.91, 281,935.67 and 75,651.98 is: 113,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,000.91 : 281,935.67 = 75,651.98 : x
  2. Step 2: Convert to fraction form
    188,000.91/281,935.67 = 75,651.98/x
  3. Step 3: Cross multiply
    188,000.91x = 281,935.67 × 75,651.98
  4. Step 4: Simplify right side
    188,000.91x = 21,328,989,880.19
  5. Step 5: Solve for x
    x = 21,328,989,880.19/188,000.91
  6. Step 6: Final answer
    x = 113,451.52

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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.