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Finding the Fourth Proportional to 363,613.61, 501,776.49 and 198,037.81

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Solution

The fourth proportional to 363,613.61, 501,776.49 and 198,037.81 is: 273,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,613.61 : 501,776.49 = 198,037.81 : x
  2. Step 2: Convert to fraction form
    363,613.61/501,776.49 = 198,037.81/x
  3. Step 3: Cross multiply
    363,613.61x = 501,776.49 × 198,037.81
  4. Step 4: Simplify right side
    363,613.61x = 99,370,717,862.72
  5. Step 5: Solve for x
    x = 99,370,717,862.72/363,613.61
  6. Step 6: Final answer
    x = 273,286.58

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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.