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Finding the Fourth Proportional to 122,489.98, 168,686.16 and 110,286.52

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Solution

The fourth proportional to 122,489.98, 168,686.16 and 110,286.52 is: 151,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,489.98 : 168,686.16 = 110,286.52 : x
  2. Step 2: Convert to fraction form
    122,489.98/168,686.16 = 110,286.52/x
  3. Step 3: Cross multiply
    122,489.98x = 168,686.16 × 110,286.52
  4. Step 4: Simplify right side
    122,489.98x = 18,603,809,558.56
  5. Step 5: Solve for x
    x = 18,603,809,558.56/122,489.98
  6. Step 6: Final answer
    x = 151,880.26

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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.