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Finding the Fourth Proportional to 192,658.38, 288,915.90 and 66,263.16

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Solution

The fourth proportional to 192,658.38, 288,915.90 and 66,263.16 is: 99,370.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,658.38 : 288,915.90 = 66,263.16 : x
  2. Step 2: Convert to fraction form
    192,658.38/288,915.90 = 66,263.16/x
  3. Step 3: Cross multiply
    192,658.38x = 288,915.90 × 66,263.16
  4. Step 4: Simplify right side
    192,658.38x = 19,144,480,508.24
  5. Step 5: Solve for x
    x = 19,144,480,508.24/192,658.38
  6. Step 6: Final answer
    x = 99,370.09

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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.