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Finding the Fourth Proportional to 194,426.80, 291,640.20 and 166,433.20

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Solution

The fourth proportional to 194,426.80, 291,640.20 and 166,433.20 is: 249,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,426.80 : 291,640.20 = 166,433.20 : x
  2. Step 2: Convert to fraction form
    194,426.80/291,640.20 = 166,433.20/x
  3. Step 3: Cross multiply
    194,426.80x = 291,640.20 × 166,433.20
  4. Step 4: Simplify right side
    194,426.80x = 48,538,611,734.64
  5. Step 5: Solve for x
    x = 48,538,611,734.64/194,426.80
  6. Step 6: Final answer
    x = 249,649.80

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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.