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Finding the Fourth Proportional to 194,956.20, 291,851.10 and 171,628.20

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Solution

The fourth proportional to 194,956.20, 291,851.10 and 171,628.20 is: 256,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,956.20 : 291,851.10 = 171,628.20 : x
  2. Step 2: Convert to fraction form
    194,956.20/291,851.10 = 171,628.20/x
  3. Step 3: Cross multiply
    194,956.20x = 291,851.10 × 171,628.20
  4. Step 4: Simplify right side
    194,956.20x = 50,089,878,961.02
  5. Step 5: Solve for x
    x = 50,089,878,961.02/194,956.20
  6. Step 6: Final answer
    x = 256,928.88

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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.