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Finding the Fourth Proportional to 122,175.44, 168,600.10 and 68,460.32

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Solution

The fourth proportional to 122,175.44, 168,600.10 and 68,460.32 is: 94,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,175.44 : 168,600.10 = 68,460.32 : x
  2. Step 2: Convert to fraction form
    122,175.44/168,600.10 = 68,460.32/x
  3. Step 3: Cross multiply
    122,175.44x = 168,600.10 × 68,460.32
  4. Step 4: Simplify right side
    122,175.44x = 11,542,416,798.03
  5. Step 5: Solve for x
    x = 11,542,416,798.03/122,175.44
  6. Step 6: Final answer
    x = 94,474.12

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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.