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Finding the Fourth Proportional to 198,502.59, 273,902.74 and 117,928.04

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Solution

The fourth proportional to 198,502.59, 273,902.74 and 117,928.04 is: 162,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,502.59 : 273,902.74 = 117,928.04 : x
  2. Step 2: Convert to fraction form
    198,502.59/273,902.74 = 117,928.04/x
  3. Step 3: Cross multiply
    198,502.59x = 273,902.74 × 117,928.04
  4. Step 4: Simplify right side
    198,502.59x = 32,300,813,668.77
  5. Step 5: Solve for x
    x = 32,300,813,668.77/198,502.59
  6. Step 6: Final answer
    x = 162,722.38

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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.