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Finding the Fourth Proportional to 343,692.30, 515,101.05 and 165,816.30

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Solution

The fourth proportional to 343,692.30, 515,101.05 and 165,816.30 is: 248,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,692.30 : 515,101.05 = 165,816.30 : x
  2. Step 2: Convert to fraction form
    343,692.30/515,101.05 = 165,816.30/x
  3. Step 3: Cross multiply
    343,692.30x = 515,101.05 × 165,816.30
  4. Step 4: Simplify right side
    343,692.30x = 85,412,150,237.12
  5. Step 5: Solve for x
    x = 85,412,150,237.12/343,692.30
  6. Step 6: Final answer
    x = 248,513.42

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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.