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Finding the Fourth Proportional to 220,112.70, 330,169.05 and 53,900.70

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Solution

The fourth proportional to 220,112.70, 330,169.05 and 53,900.70 is: 80,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.70 : 330,169.05 = 53,900.70 : x
  2. Step 2: Convert to fraction form
    220,112.70/330,169.05 = 53,900.70/x
  3. Step 3: Cross multiply
    220,112.70x = 330,169.05 × 53,900.70
  4. Step 4: Simplify right side
    220,112.70x = 17,796,342,913.34
  5. Step 5: Solve for x
    x = 17,796,342,913.34/220,112.70
  6. Step 6: Final answer
    x = 80,851.05

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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.