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Finding the Fourth Proportional to 166,990.88, 230,448.22 and 99,922.88

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Solution

The fourth proportional to 166,990.88, 230,448.22 and 99,922.88 is: 137,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,990.88 : 230,448.22 = 99,922.88 : x
  2. Step 2: Convert to fraction form
    166,990.88/230,448.22 = 99,922.88/x
  3. Step 3: Cross multiply
    166,990.88x = 230,448.22 × 99,922.88
  4. Step 4: Simplify right side
    166,990.88x = 23,027,048,431.23
  5. Step 5: Solve for x
    x = 23,027,048,431.23/166,990.88
  6. Step 6: Final answer
    x = 137,894.05

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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.