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Finding the Fourth Proportional to 166,698.65, 230,042.36 and 90,216.09

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Solution

The fourth proportional to 166,698.65, 230,042.36 and 90,216.09 is: 124,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,698.65 : 230,042.36 = 90,216.09 : x
  2. Step 2: Convert to fraction form
    166,698.65/230,042.36 = 90,216.09/x
  3. Step 3: Cross multiply
    166,698.65x = 230,042.36 × 90,216.09
  4. Step 4: Simplify right side
    166,698.65x = 20,753,522,479.11
  5. Step 5: Solve for x
    x = 20,753,522,479.11/166,698.65
  6. Step 6: Final answer
    x = 124,497.24

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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.