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Finding the Fourth Proportional to 267,931.20, 401,551.20 and 205,291.20

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Solution

The fourth proportional to 267,931.20, 401,551.20 and 205,291.20 is: 307,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,931.20 : 401,551.20 = 205,291.20 : x
  2. Step 2: Convert to fraction form
    267,931.20/401,551.20 = 205,291.20/x
  3. Step 3: Cross multiply
    267,931.20x = 401,551.20 × 205,291.20
  4. Step 4: Simplify right side
    267,931.20x = 82,434,927,709.44
  5. Step 5: Solve for x
    x = 82,434,927,709.44/267,931.20
  6. Step 6: Final answer
    x = 307,672.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.