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Finding the Fourth Proportional to 275,211.54, 379,630.63 and 173,075.00

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Solution

The fourth proportional to 275,211.54, 379,630.63 and 173,075.00 is: 238,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,211.54 : 379,630.63 = 173,075.00 : x
  2. Step 2: Convert to fraction form
    275,211.54/379,630.63 = 173,075.00/x
  3. Step 3: Cross multiply
    275,211.54x = 379,630.63 × 173,075.00
  4. Step 4: Simplify right side
    275,211.54x = 65,704,569,605.44
  5. Step 5: Solve for x
    x = 65,704,569,605.44/275,211.54
  6. Step 6: Final answer
    x = 238,742.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.