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Finding the Fourth Proportional to 238,636.52, 329,311.36 and 136,658.60

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Solution

The fourth proportional to 238,636.52, 329,311.36 and 136,658.60 is: 188,584.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,636.52 : 329,311.36 = 136,658.60 : x
  2. Step 2: Convert to fraction form
    238,636.52/329,311.36 = 136,658.60/x
  3. Step 3: Cross multiply
    238,636.52x = 329,311.36 × 136,658.60
  4. Step 4: Simplify right side
    238,636.52x = 45,003,229,421.70
  5. Step 5: Solve for x
    x = 45,003,229,421.70/238,636.52
  6. Step 6: Final answer
    x = 188,584.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.