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Finding the Fourth Proportional to 199,408.54, 275,177.07 and 118,794.31

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Solution

The fourth proportional to 199,408.54, 275,177.07 and 118,794.31 is: 163,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,408.54 : 275,177.07 = 118,794.31 : x
  2. Step 2: Convert to fraction form
    199,408.54/275,177.07 = 118,794.31/x
  3. Step 3: Cross multiply
    199,408.54x = 275,177.07 × 118,794.31
  4. Step 4: Simplify right side
    199,408.54x = 32,689,470,158.47
  5. Step 5: Solve for x
    x = 32,689,470,158.47/199,408.54
  6. Step 6: Final answer
    x = 163,932.15

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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.