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Finding the Fourth Proportional to 136,696.77, 188,760.21 and 85,797.72

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Solution

The fourth proportional to 136,696.77, 188,760.21 and 85,797.72 is: 118,475.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,696.77 : 188,760.21 = 85,797.72 : x
  2. Step 2: Convert to fraction form
    136,696.77/188,760.21 = 85,797.72/x
  3. Step 3: Cross multiply
    136,696.77x = 188,760.21 × 85,797.72
  4. Step 4: Simplify right side
    136,696.77x = 16,195,195,644.72
  5. Step 5: Solve for x
    x = 16,195,195,644.72/136,696.77
  6. Step 6: Final answer
    x = 118,475.34

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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.