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Finding the Fourth Proportional to 354,312.45, 531,219.49 and 164,571.37

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Solution

The fourth proportional to 354,312.45, 531,219.49 and 164,571.37 is: 246,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,312.45 : 531,219.49 = 164,571.37 : x
  2. Step 2: Convert to fraction form
    354,312.45/531,219.49 = 164,571.37/x
  3. Step 3: Cross multiply
    354,312.45x = 531,219.49 × 164,571.37
  4. Step 4: Simplify right side
    354,312.45x = 87,423,519,457.44
  5. Step 5: Solve for x
    x = 87,423,519,457.44/354,312.45
  6. Step 6: Final answer
    x = 246,741.31

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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.