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Finding the Fourth Proportional to 136,674.60, 204,914.70 and 52,402.20

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Solution

The fourth proportional to 136,674.60, 204,914.70 and 52,402.20 is: 78,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,674.60 : 204,914.70 = 52,402.20 : x
  2. Step 2: Convert to fraction form
    136,674.60/204,914.70 = 52,402.20/x
  3. Step 3: Cross multiply
    136,674.60x = 204,914.70 × 52,402.20
  4. Step 4: Simplify right side
    136,674.60x = 10,737,981,092.34
  5. Step 5: Solve for x
    x = 10,737,981,092.34/136,674.60
  6. Step 6: Final answer
    x = 78,566.03

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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.