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Finding the Fourth Proportional to 156,696.80, 235,085.73 and 67,929.80

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Solution

The fourth proportional to 156,696.80, 235,085.73 and 67,929.80 is: 101,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.80 : 235,085.73 = 67,929.80 : x
  2. Step 2: Convert to fraction form
    156,696.80/235,085.73 = 67,929.80/x
  3. Step 3: Cross multiply
    156,696.80x = 235,085.73 × 67,929.80
  4. Step 4: Simplify right side
    156,696.80x = 15,969,326,621.75
  5. Step 5: Solve for x
    x = 15,969,326,621.75/156,696.80
  6. Step 6: Final answer
    x = 101,912.27

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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.