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Finding the Fourth Proportional to 136,622.45, 188,474.64 and 88,858.37

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Solution

The fourth proportional to 136,622.45, 188,474.64 and 88,858.37 is: 122,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,622.45 : 188,474.64 = 88,858.37 : x
  2. Step 2: Convert to fraction form
    136,622.45/188,474.64 = 88,858.37/x
  3. Step 3: Cross multiply
    136,622.45x = 188,474.64 × 88,858.37
  4. Step 4: Simplify right side
    136,622.45x = 16,747,549,767.92
  5. Step 5: Solve for x
    x = 16,747,549,767.92/136,622.45
  6. Step 6: Final answer
    x = 122,582.70

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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.