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Finding the Fourth Proportional to 196,016.40, 293,722.20 and 145,861.20

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Solution

The fourth proportional to 196,016.40, 293,722.20 and 145,861.20 is: 218,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,016.40 : 293,722.20 = 145,861.20 : x
  2. Step 2: Convert to fraction form
    196,016.40/293,722.20 = 145,861.20/x
  3. Step 3: Cross multiply
    196,016.40x = 293,722.20 × 145,861.20
  4. Step 4: Simplify right side
    196,016.40x = 42,842,672,558.64
  5. Step 5: Solve for x
    x = 42,842,672,558.64/196,016.40
  6. Step 6: Final answer
    x = 218,566.78

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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.