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Finding the Fourth Proportional to 348,757.75, 523,141.49 and 99,439.75

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Solution

The fourth proportional to 348,757.75, 523,141.49 and 99,439.75 is: 149,161.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,757.75 : 523,141.49 = 99,439.75 : x
  2. Step 2: Convert to fraction form
    348,757.75/523,141.49 = 99,439.75/x
  3. Step 3: Cross multiply
    348,757.75x = 523,141.49 × 99,439.75
  4. Step 4: Simplify right side
    348,757.75x = 52,021,058,980.23
  5. Step 5: Solve for x
    x = 52,021,058,980.23/348,757.75
  6. Step 6: Final answer
    x = 149,161.01

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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.