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Finding the Fourth Proportional to 156,796.75, 216,469.22 and 103,237.32

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Solution

The fourth proportional to 156,796.75, 216,469.22 and 103,237.32 is: 142,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,796.75 : 216,469.22 = 103,237.32 : x
  2. Step 2: Convert to fraction form
    156,796.75/216,469.22 = 103,237.32/x
  3. Step 3: Cross multiply
    156,796.75x = 216,469.22 × 103,237.32
  4. Step 4: Simplify right side
    156,796.75x = 22,347,702,135.29
  5. Step 5: Solve for x
    x = 22,347,702,135.29/156,796.75
  6. Step 6: Final answer
    x = 142,526.56

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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.