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Finding the Fourth Proportional to 348,813.22, 523,274.66 and 149,134.66

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Solution

The fourth proportional to 348,813.22, 523,274.66 and 149,134.66 is: 223,725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,813.22 : 523,274.66 = 149,134.66 : x
  2. Step 2: Convert to fraction form
    348,813.22/523,274.66 = 149,134.66/x
  3. Step 3: Cross multiply
    348,813.22x = 523,274.66 × 149,134.66
  4. Step 4: Simplify right side
    348,813.22x = 78,038,388,505.72
  5. Step 5: Solve for x
    x = 78,038,388,505.72/348,813.22
  6. Step 6: Final answer
    x = 223,725.43

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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.