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Finding the Fourth Proportional to 169,600.60, 254,546.70 and 74,976.40

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Solution

The fourth proportional to 169,600.60, 254,546.70 and 74,976.40 is: 112,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,600.60 : 254,546.70 = 74,976.40 : x
  2. Step 2: Convert to fraction form
    169,600.60/254,546.70 = 74,976.40/x
  3. Step 3: Cross multiply
    169,600.60x = 254,546.70 × 74,976.40
  4. Step 4: Simplify right side
    169,600.60x = 19,084,995,197.88
  5. Step 5: Solve for x
    x = 19,084,995,197.88/169,600.60
  6. Step 6: Final answer
    x = 112,529.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.