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Finding the Fourth Proportional to 156,880.98, 216,487.46 and 88,898.78

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Solution

The fourth proportional to 156,880.98, 216,487.46 and 88,898.78 is: 122,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,880.98 : 216,487.46 = 88,898.78 : x
  2. Step 2: Convert to fraction form
    156,880.98/216,487.46 = 88,898.78/x
  3. Step 3: Cross multiply
    156,880.98x = 216,487.46 × 88,898.78
  4. Step 4: Simplify right side
    156,880.98x = 19,245,469,552.37
  5. Step 5: Solve for x
    x = 19,245,469,552.37/156,880.98
  6. Step 6: Final answer
    x = 122,675.61

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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.