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Finding the Fourth Proportional to 208,040.80, 311,623.80 and 173,048.80

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Solution

The fourth proportional to 208,040.80, 311,623.80 and 173,048.80 is: 259,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,040.80 : 311,623.80 = 173,048.80 : x
  2. Step 2: Convert to fraction form
    208,040.80/311,623.80 = 173,048.80/x
  3. Step 3: Cross multiply
    208,040.80x = 311,623.80 × 173,048.80
  4. Step 4: Simplify right side
    208,040.80x = 53,926,124,641.44
  5. Step 5: Solve for x
    x = 53,926,124,641.44/208,040.80
  6. Step 6: Final answer
    x = 259,209.37

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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.