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Finding the Fourth Proportional to 122,275.28, 168,739.24 and 68,560.24

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Solution

The fourth proportional to 122,275.28, 168,739.24 and 68,560.24 is: 94,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,275.28 : 168,739.24 = 68,560.24 : x
  2. Step 2: Convert to fraction form
    122,275.28/168,739.24 = 68,560.24/x
  3. Step 3: Cross multiply
    122,275.28x = 168,739.24 × 68,560.24
  4. Step 4: Simplify right side
    122,275.28x = 11,568,802,791.82
  5. Step 5: Solve for x
    x = 11,568,802,791.82/122,275.28
  6. Step 6: Final answer
    x = 94,612.77

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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.