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Finding the Fourth Proportional to 198,684.77, 274,176.63 and 112,649.54

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Solution

The fourth proportional to 198,684.77, 274,176.63 and 112,649.54 is: 155,451.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,684.77 : 274,176.63 = 112,649.54 : x
  2. Step 2: Convert to fraction form
    198,684.77/274,176.63 = 112,649.54/x
  3. Step 3: Cross multiply
    198,684.77x = 274,176.63 × 112,649.54
  4. Step 4: Simplify right side
    198,684.77x = 30,885,869,877.37
  5. Step 5: Solve for x
    x = 30,885,869,877.37/198,684.77
  6. Step 6: Final answer
    x = 155,451.63

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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.