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Finding the Fourth Proportional to 119,996.80, 179,995.20 and 96,668.80

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Solution

The fourth proportional to 119,996.80, 179,995.20 and 96,668.80 is: 145,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,996.80 : 179,995.20 = 96,668.80 : x
  2. Step 2: Convert to fraction form
    119,996.80/179,995.20 = 96,668.80/x
  3. Step 3: Cross multiply
    119,996.80x = 179,995.20 × 96,668.80
  4. Step 4: Simplify right side
    119,996.80x = 17,399,919,989.76
  5. Step 5: Solve for x
    x = 17,399,919,989.76/119,996.80
  6. Step 6: Final answer
    x = 145,003.20

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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.