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Finding the Fourth Proportional to 114,630.80, 171,946.20 and 67,859.60

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Solution

The fourth proportional to 114,630.80, 171,946.20 and 67,859.60 is: 101,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,630.80 : 171,946.20 = 67,859.60 : x
  2. Step 2: Convert to fraction form
    114,630.80/171,946.20 = 67,859.60/x
  3. Step 3: Cross multiply
    114,630.80x = 171,946.20 × 67,859.60
  4. Step 4: Simplify right side
    114,630.80x = 11,668,200,353.52
  5. Step 5: Solve for x
    x = 11,668,200,353.52/114,630.80
  6. Step 6: Final answer
    x = 101,789.40

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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.