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Finding the Fourth Proportional to 166,871.20, 250,306.80 and 61,668.40

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Solution

The fourth proportional to 166,871.20, 250,306.80 and 61,668.40 is: 92,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,871.20 : 250,306.80 = 61,668.40 : x
  2. Step 2: Convert to fraction form
    166,871.20/250,306.80 = 61,668.40/x
  3. Step 3: Cross multiply
    166,871.20x = 250,306.80 × 61,668.40
  4. Step 4: Simplify right side
    166,871.20x = 15,436,019,865.12
  5. Step 5: Solve for x
    x = 15,436,019,865.12/166,871.20
  6. Step 6: Final answer
    x = 92,502.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.