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Finding the Fourth Proportional to 188,706.44, 260,416.96 and 102,665.91

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Solution

The fourth proportional to 188,706.44, 260,416.96 and 102,665.91 is: 141,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,706.44 : 260,416.96 = 102,665.91 : x
  2. Step 2: Convert to fraction form
    188,706.44/260,416.96 = 102,665.91/x
  3. Step 3: Cross multiply
    188,706.44x = 260,416.96 × 102,665.91
  4. Step 4: Simplify right side
    188,706.44x = 26,735,944,897.73
  5. Step 5: Solve for x
    x = 26,735,944,897.73/188,706.44
  6. Step 6: Final answer
    x = 141,680.09

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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.