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Finding the Fourth Proportional to 208,014.20, 312,021.30 and 173,022.20

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Solution

The fourth proportional to 208,014.20, 312,021.30 and 173,022.20 is: 259,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,014.20 : 312,021.30 = 173,022.20 : x
  2. Step 2: Convert to fraction form
    208,014.20/312,021.30 = 173,022.20/x
  3. Step 3: Cross multiply
    208,014.20x = 312,021.30 × 173,022.20
  4. Step 4: Simplify right side
    208,014.20x = 53,986,611,772.86
  5. Step 5: Solve for x
    x = 53,986,611,772.86/208,014.20
  6. Step 6: Final answer
    x = 259,533.30

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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.