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Finding the Fourth Proportional to 168,996.70, 253,575.24 and 84,764.40

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Solution

The fourth proportional to 168,996.70, 253,575.24 and 84,764.40 is: 127,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,996.70 : 253,575.24 = 84,764.40 : x
  2. Step 2: Convert to fraction form
    168,996.70/253,575.24 = 84,764.40/x
  3. Step 3: Cross multiply
    168,996.70x = 253,575.24 × 84,764.40
  4. Step 4: Simplify right side
    168,996.70x = 21,494,153,073.46
  5. Step 5: Solve for x
    x = 21,494,153,073.46/168,996.70
  6. Step 6: Final answer
    x = 127,186.82

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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.