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Finding the Fourth Proportional to 194,316.78, 291,475.17 and 75,905.09

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Solution

The fourth proportional to 194,316.78, 291,475.17 and 75,905.09 is: 113,857.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,316.78 : 291,475.17 = 75,905.09 : x
  2. Step 2: Convert to fraction form
    194,316.78/291,475.17 = 75,905.09/x
  3. Step 3: Cross multiply
    194,316.78x = 291,475.17 × 75,905.09
  4. Step 4: Simplify right side
    194,316.78x = 22,124,449,011.62
  5. Step 5: Solve for x
    x = 22,124,449,011.62/194,316.78
  6. Step 6: Final answer
    x = 113,857.64

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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.