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Finding the Fourth Proportional to 136,599.53, 188,440.48 and 91,288.73

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Solution

The fourth proportional to 136,599.53, 188,440.48 and 91,288.73 is: 125,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,599.53 : 188,440.48 = 91,288.73 : x
  2. Step 2: Convert to fraction form
    136,599.53/188,440.48 = 91,288.73/x
  3. Step 3: Cross multiply
    136,599.53x = 188,440.48 × 91,288.73
  4. Step 4: Simplify right side
    136,599.53x = 17,202,492,099.79
  5. Step 5: Solve for x
    x = 17,202,492,099.79/136,599.53
  6. Step 6: Final answer
    x = 125,933.76

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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.