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Finding the Fourth Proportional to 156,640.64, 235,194.24 and 63,328.64

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Solution

The fourth proportional to 156,640.64, 235,194.24 and 63,328.64 is: 95,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640.64 : 235,194.24 = 63,328.64 : x
  2. Step 2: Convert to fraction form
    156,640.64/235,194.24 = 63,328.64/x
  3. Step 3: Cross multiply
    156,640.64x = 235,194.24 × 63,328.64
  4. Step 4: Simplify right side
    156,640.64x = 14,894,531,355.03
  5. Step 5: Solve for x
    x = 14,894,531,355.03/156,640.64
  6. Step 6: Final answer
    x = 95,087.27

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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.