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Finding the Fourth Proportional to 262,487.52, 362,232.78 and 143,255.52

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Solution

The fourth proportional to 262,487.52, 362,232.78 and 143,255.52 is: 197,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,487.52 : 362,232.78 = 143,255.52 : x
  2. Step 2: Convert to fraction form
    262,487.52/362,232.78 = 143,255.52/x
  3. Step 3: Cross multiply
    262,487.52x = 362,232.78 × 143,255.52
  4. Step 4: Simplify right side
    262,487.52x = 51,891,845,259.95
  5. Step 5: Solve for x
    x = 51,891,845,259.95/262,487.52
  6. Step 6: Final answer
    x = 197,692.62

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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.