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Finding the Fourth Proportional to 363,064.75, 501,043.18 and 201,931.45

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Solution

The fourth proportional to 363,064.75, 501,043.18 and 201,931.45 is: 278,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,064.75 : 501,043.18 = 201,931.45 : x
  2. Step 2: Convert to fraction form
    363,064.75/501,043.18 = 201,931.45/x
  3. Step 3: Cross multiply
    363,064.75x = 501,043.18 × 201,931.45
  4. Step 4: Simplify right side
    363,064.75x = 101,176,375,850.01
  5. Step 5: Solve for x
    x = 101,176,375,850.01/363,064.75
  6. Step 6: Final answer
    x = 278,673.09

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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.