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Finding the Fourth Proportional to 122,797.96, 169,481.90 and 71,107.54

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Solution

The fourth proportional to 122,797.96, 169,481.90 and 71,107.54 is: 98,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,797.96 : 169,481.90 = 71,107.54 : x
  2. Step 2: Convert to fraction form
    122,797.96/169,481.90 = 71,107.54/x
  3. Step 3: Cross multiply
    122,797.96x = 169,481.90 × 71,107.54
  4. Step 4: Simplify right side
    122,797.96x = 12,051,440,983.53
  5. Step 5: Solve for x
    x = 12,051,440,983.53/122,797.96
  6. Step 6: Final answer
    x = 98,140.40

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1.5x scale

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.