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Finding the Fourth Proportional to 122,467.14, 168,999.21 and 68,751.18

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Solution

The fourth proportional to 122,467.14, 168,999.21 and 68,751.18 is: 94,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,467.14 : 168,999.21 = 68,751.18 : x
  2. Step 2: Convert to fraction form
    122,467.14/168,999.21 = 68,751.18/x
  3. Step 3: Cross multiply
    122,467.14x = 168,999.21 × 68,751.18
  4. Step 4: Simplify right side
    122,467.14x = 11,618,895,106.57
  5. Step 5: Solve for x
    x = 11,618,895,106.57/122,467.14
  6. Step 6: Final answer
    x = 94,873.57

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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.