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Finding the Fourth Proportional to 243,620.56, 336,198.77 and 136,196.47

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Solution

The fourth proportional to 243,620.56, 336,198.77 and 136,196.47 is: 187,952.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,620.56 : 336,198.77 = 136,196.47 : x
  2. Step 2: Convert to fraction form
    243,620.56/336,198.77 = 136,196.47/x
  3. Step 3: Cross multiply
    243,620.56x = 336,198.77 × 136,196.47
  4. Step 4: Simplify right side
    243,620.56x = 45,789,085,692.34
  5. Step 5: Solve for x
    x = 45,789,085,692.34/243,620.56
  6. Step 6: Final answer
    x = 187,952.47

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1.5x scale

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.