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Finding the Fourth Proportional to 194,620.60, 291,930.90 and 185,435.20

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Solution

The fourth proportional to 194,620.60, 291,930.90 and 185,435.20 is: 278,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,620.60 : 291,930.90 = 185,435.20 : x
  2. Step 2: Convert to fraction form
    194,620.60/291,930.90 = 185,435.20/x
  3. Step 3: Cross multiply
    194,620.60x = 291,930.90 × 185,435.20
  4. Step 4: Simplify right side
    194,620.60x = 54,134,264,827.68
  5. Step 5: Solve for x
    x = 54,134,264,827.68/194,620.60
  6. Step 6: Final answer
    x = 278,152.80

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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.