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Finding the Fourth Proportional to 166,808.42, 230,196.09 and 90,328.42

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Solution

The fourth proportional to 166,808.42, 230,196.09 and 90,328.42 is: 124,653.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,808.42 : 230,196.09 = 90,328.42 : x
  2. Step 2: Convert to fraction form
    166,808.42/230,196.09 = 90,328.42/x
  3. Step 3: Cross multiply
    166,808.42x = 230,196.09 × 90,328.42
  4. Step 4: Simplify right side
    166,808.42x = 20,793,249,099.88
  5. Step 5: Solve for x
    x = 20,793,249,099.88/166,808.42
  6. Step 6: Final answer
    x = 124,653.47

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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.