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Finding the Fourth Proportional to 194,334.60, 291,939.30 and 189,085.80

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Solution

The fourth proportional to 194,334.60, 291,939.30 and 189,085.80 is: 284,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,334.60 : 291,939.30 = 189,085.80 : x
  2. Step 2: Convert to fraction form
    194,334.60/291,939.30 = 189,085.80/x
  3. Step 3: Cross multiply
    194,334.60x = 291,939.30 × 189,085.80
  4. Step 4: Simplify right side
    194,334.60x = 55,201,576,091.94
  5. Step 5: Solve for x
    x = 55,201,576,091.94/194,334.60
  6. Step 6: Final answer
    x = 284,054.29

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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.