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Finding the Fourth Proportional to 243,886.20, 365,173.20 and 190,960.80

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Solution

The fourth proportional to 243,886.20, 365,173.20 and 190,960.80 is: 285,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,886.20 : 365,173.20 = 190,960.80 : x
  2. Step 2: Convert to fraction form
    243,886.20/365,173.20 = 190,960.80/x
  3. Step 3: Cross multiply
    243,886.20x = 365,173.20 × 190,960.80
  4. Step 4: Simplify right side
    243,886.20x = 69,733,766,410.56
  5. Step 5: Solve for x
    x = 69,733,766,410.56/243,886.20
  6. Step 6: Final answer
    x = 285,927.48

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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.