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Finding the Fourth Proportional to 353,906.60, 530,859.90 and 104,588.60

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Solution

The fourth proportional to 353,906.60, 530,859.90 and 104,588.60 is: 156,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,906.60 : 530,859.90 = 104,588.60 : x
  2. Step 2: Convert to fraction form
    353,906.60/530,859.90 = 104,588.60/x
  3. Step 3: Cross multiply
    353,906.60x = 530,859.90 × 104,588.60
  4. Step 4: Simplify right side
    353,906.60x = 55,521,893,737.14
  5. Step 5: Solve for x
    x = 55,521,893,737.14/353,906.60
  6. Step 6: Final answer
    x = 156,882.90

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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.