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Finding the Fourth Proportional to 329,443.11, 494,172.76 and 92,784.19

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Solution

The fourth proportional to 329,443.11, 494,172.76 and 92,784.19 is: 139,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,443.11 : 494,172.76 = 92,784.19 : x
  2. Step 2: Convert to fraction form
    329,443.11/494,172.76 = 92,784.19/x
  3. Step 3: Cross multiply
    329,443.11x = 494,172.76 × 92,784.19
  4. Step 4: Simplify right side
    329,443.11x = 45,851,419,256.66
  5. Step 5: Solve for x
    x = 45,851,419,256.66/329,443.11
  6. Step 6: Final answer
    x = 139,178.56

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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.