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Finding the Fourth Proportional to 156,272.60, 215,657.22 and 84,652.62

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Solution

The fourth proportional to 156,272.60, 215,657.22 and 84,652.62 is: 116,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,272.60 : 215,657.22 = 84,652.62 : x
  2. Step 2: Convert to fraction form
    156,272.60/215,657.22 = 84,652.62/x
  3. Step 3: Cross multiply
    156,272.60x = 215,657.22 × 84,652.62
  4. Step 4: Simplify right side
    156,272.60x = 18,255,948,694.92
  5. Step 5: Solve for x
    x = 18,255,948,694.92/156,272.60
  6. Step 6: Final answer
    x = 116,821.17

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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.