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Finding the Fourth Proportional to 198,797.74, 274,341.53 and 108,153.69

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Solution

The fourth proportional to 198,797.74, 274,341.53 and 108,153.69 is: 149,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,797.74 : 274,341.53 = 108,153.69 : x
  2. Step 2: Convert to fraction form
    198,797.74/274,341.53 = 108,153.69/x
  3. Step 3: Cross multiply
    198,797.74x = 274,341.53 × 108,153.69
  4. Step 4: Simplify right side
    198,797.74x = 29,671,048,789.75
  5. Step 5: Solve for x
    x = 29,671,048,789.75/198,797.74
  6. Step 6: Final answer
    x = 149,252.45

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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.