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Finding the Fourth Proportional to 122,249.44, 168,664.32 and 71,250.48

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Solution

The fourth proportional to 122,249.44, 168,664.32 and 71,250.48 is: 98,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,249.44 : 168,664.32 = 71,250.48 : x
  2. Step 2: Convert to fraction form
    122,249.44/168,664.32 = 71,250.48/x
  3. Step 3: Cross multiply
    122,249.44x = 168,664.32 × 71,250.48
  4. Step 4: Simplify right side
    122,249.44x = 12,017,413,758.87
  5. Step 5: Solve for x
    x = 12,017,413,758.87/122,249.44
  6. Step 6: Final answer
    x = 98,302.40

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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.