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Finding the Fourth Proportional to 203,292.48, 280,683.60 and 155,462.48

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Solution

The fourth proportional to 203,292.48, 280,683.60 and 155,462.48 is: 214,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,292.48 : 280,683.60 = 155,462.48 : x
  2. Step 2: Convert to fraction form
    203,292.48/280,683.60 = 155,462.48/x
  3. Step 3: Cross multiply
    203,292.48x = 280,683.60 × 155,462.48
  4. Step 4: Simplify right side
    203,292.48x = 43,635,768,551.33
  5. Step 5: Solve for x
    x = 43,635,768,551.33/203,292.48
  6. Step 6: Final answer
    x = 214,645.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.