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Finding the Fourth Proportional to 136,364.16, 188,137.44 and 79,735.44

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Solution

The fourth proportional to 136,364.16, 188,137.44 and 79,735.44 is: 110,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,364.16 : 188,137.44 = 79,735.44 : x
  2. Step 2: Convert to fraction form
    136,364.16/188,137.44 = 79,735.44/x
  3. Step 3: Cross multiply
    136,364.16x = 188,137.44 × 79,735.44
  4. Step 4: Simplify right side
    136,364.16x = 15,001,221,558.87
  5. Step 5: Solve for x
    x = 15,001,221,558.87/136,364.16
  6. Step 6: Final answer
    x = 110,008.54

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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.