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Finding the Fourth Proportional to 192,658.14, 288,915.52 and 66,262.90

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Solution

The fourth proportional to 192,658.14, 288,915.52 and 66,262.90 is: 99,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,658.14 : 288,915.52 = 66,262.90 : x
  2. Step 2: Convert to fraction form
    192,658.14/288,915.52 = 66,262.90/x
  3. Step 3: Cross multiply
    192,658.14x = 288,915.52 × 66,262.90
  4. Step 4: Simplify right side
    192,658.14x = 19,144,380,210.21
  5. Step 5: Solve for x
    x = 19,144,380,210.21/192,658.14
  6. Step 6: Final answer
    x = 99,369.69

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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.