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Finding the Fourth Proportional to 131,753.80, 197,630.70 and 84,514.60

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Solution

The fourth proportional to 131,753.80, 197,630.70 and 84,514.60 is: 126,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,753.80 : 197,630.70 = 84,514.60 : x
  2. Step 2: Convert to fraction form
    131,753.80/197,630.70 = 84,514.60/x
  3. Step 3: Cross multiply
    131,753.80x = 197,630.70 × 84,514.60
  4. Step 4: Simplify right side
    131,753.80x = 16,702,679,558.22
  5. Step 5: Solve for x
    x = 16,702,679,558.22/131,753.80
  6. Step 6: Final answer
    x = 126,771.90

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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.