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Finding the Fourth Proportional to 363,936.66, 502,225.86 and 198,366.05

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Solution

The fourth proportional to 363,936.66, 502,225.86 and 198,366.05 is: 273,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,936.66 : 502,225.86 = 198,366.05 : x
  2. Step 2: Convert to fraction form
    363,936.66/502,225.86 = 198,366.05/x
  3. Step 3: Cross multiply
    363,936.66x = 502,225.86 × 198,366.05
  4. Step 4: Simplify right side
    363,936.66x = 99,624,558,684.40
  5. Step 5: Solve for x
    x = 99,624,558,684.40/363,936.66
  6. Step 6: Final answer
    x = 273,741.48

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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.