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Finding the Fourth Proportional to 156,969.94, 235,449.60 and 68,223.43

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Solution

The fourth proportional to 156,969.94, 235,449.60 and 68,223.43 is: 102,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.94 : 235,449.60 = 68,223.43 : x
  2. Step 2: Convert to fraction form
    156,969.94/235,449.60 = 68,223.43/x
  3. Step 3: Cross multiply
    156,969.94x = 235,449.60 × 68,223.43
  4. Step 4: Simplify right side
    156,969.94x = 16,063,179,304.13
  5. Step 5: Solve for x
    x = 16,063,179,304.13/156,969.94
  6. Step 6: Final answer
    x = 102,332.84

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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.