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Finding the Fourth Proportional to 194,741.20, 292,111.80 and 185,555.80

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Solution

The fourth proportional to 194,741.20, 292,111.80 and 185,555.80 is: 278,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,741.20 : 292,111.80 = 185,555.80 : x
  2. Step 2: Convert to fraction form
    194,741.20/292,111.80 = 185,555.80/x
  3. Step 3: Cross multiply
    194,741.20x = 292,111.80 × 185,555.80
  4. Step 4: Simplify right side
    194,741.20x = 54,203,038,738.44
  5. Step 5: Solve for x
    x = 54,203,038,738.44/194,741.20
  6. Step 6: Final answer
    x = 278,333.70

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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.