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Finding the Fourth Proportional to 208,342.80, 312,076.80 and 173,350.80

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Solution

The fourth proportional to 208,342.80, 312,076.80 and 173,350.80 is: 259,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,342.80 : 312,076.80 = 173,350.80 : x
  2. Step 2: Convert to fraction form
    208,342.80/312,076.80 = 173,350.80/x
  3. Step 3: Cross multiply
    208,342.80x = 312,076.80 × 173,350.80
  4. Step 4: Simplify right side
    208,342.80x = 54,098,762,941.44
  5. Step 5: Solve for x
    x = 54,098,762,941.44/208,342.80
  6. Step 6: Final answer
    x = 259,662.26

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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.