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Finding the Fourth Proportional to 267,947.75, 369,692.14 and 172,509.70

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Solution

The fourth proportional to 267,947.75, 369,692.14 and 172,509.70 is: 238,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,947.75 : 369,692.14 = 172,509.70 : x
  2. Step 2: Convert to fraction form
    267,947.75/369,692.14 = 172,509.70/x
  3. Step 3: Cross multiply
    267,947.75x = 369,692.14 × 172,509.70
  4. Step 4: Simplify right side
    267,947.75x = 63,775,477,452.75
  5. Step 5: Solve for x
    x = 63,775,477,452.75/267,947.75
  6. Step 6: Final answer
    x = 238,014.61

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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.