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Finding the Fourth Proportional to 122,594.50, 169,179.24 and 68,145.24

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Solution

The fourth proportional to 122,594.50, 169,179.24 and 68,145.24 is: 94,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,594.50 : 169,179.24 = 68,145.24 : x
  2. Step 2: Convert to fraction form
    122,594.50/169,179.24 = 68,145.24/x
  3. Step 3: Cross multiply
    122,594.50x = 169,179.24 × 68,145.24
  4. Step 4: Simplify right side
    122,594.50x = 11,528,759,912.82
  5. Step 5: Solve for x
    x = 11,528,759,912.82/122,594.50
  6. Step 6: Final answer
    x = 94,039.78

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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.