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Finding the Fourth Proportional to 343,692.99, 515,584.78 and 127,522.33

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Solution

The fourth proportional to 343,692.99, 515,584.78 and 127,522.33 is: 191,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,692.99 : 515,584.78 = 127,522.33 : x
  2. Step 2: Convert to fraction form
    343,692.99/515,584.78 = 127,522.33/x
  3. Step 3: Cross multiply
    343,692.99x = 515,584.78 × 127,522.33
  4. Step 4: Simplify right side
    343,692.99x = 65,748,570,850.37
  5. Step 5: Solve for x
    x = 65,748,570,850.37/343,692.99
  6. Step 6: Final answer
    x = 191,300.30

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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.