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Finding the Fourth Proportional to 192,692.48, 288,664.64 and 141,999.48

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Solution

The fourth proportional to 192,692.48, 288,664.64 and 141,999.48 is: 212,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,692.48 : 288,664.64 = 141,999.48 : x
  2. Step 2: Convert to fraction form
    192,692.48/288,664.64 = 141,999.48/x
  3. Step 3: Cross multiply
    192,692.48x = 288,664.64 × 141,999.48
  4. Step 4: Simplify right side
    192,692.48x = 40,990,228,774.39
  5. Step 5: Solve for x
    x = 40,990,228,774.39/192,692.48
  6. Step 6: Final answer
    x = 212,723.55

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1.5x scale

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.