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Finding the Fourth Proportional to 208,887.48, 313,439.22 and 103,704.12

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Solution

The fourth proportional to 208,887.48, 313,439.22 and 103,704.12 is: 155,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,887.48 : 313,439.22 = 103,704.12 : x
  2. Step 2: Convert to fraction form
    208,887.48/313,439.22 = 103,704.12/x
  3. Step 3: Cross multiply
    208,887.48x = 313,439.22 × 103,704.12
  4. Step 4: Simplify right side
    208,887.48x = 32,504,938,483.59
  5. Step 5: Solve for x
    x = 32,504,938,483.59/208,887.48
  6. Step 6: Final answer
    x = 155,609.80

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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.