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Finding the Fourth Proportional to 122,247.63, 168,698.84 and 67,799.57

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Solution

The fourth proportional to 122,247.63, 168,698.84 and 67,799.57 is: 93,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,247.63 : 168,698.84 = 67,799.57 : x
  2. Step 2: Convert to fraction form
    122,247.63/168,698.84 = 67,799.57/x
  3. Step 3: Cross multiply
    122,247.63x = 168,698.84 × 67,799.57
  4. Step 4: Simplify right side
    122,247.63x = 11,437,707,629.01
  5. Step 5: Solve for x
    x = 11,437,707,629.01/122,247.63
  6. Step 6: Final answer
    x = 93,561.79

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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.