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Finding the Fourth Proportional to 194,199.80, 291,348.30 and 154,369.40

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Solution

The fourth proportional to 194,199.80, 291,348.30 and 154,369.40 is: 231,592.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,199.80 : 291,348.30 = 154,369.40 : x
  2. Step 2: Convert to fraction form
    194,199.80/291,348.30 = 154,369.40/x
  3. Step 3: Cross multiply
    194,199.80x = 291,348.30 × 154,369.40
  4. Step 4: Simplify right side
    194,199.80x = 44,975,262,262.02
  5. Step 5: Solve for x
    x = 44,975,262,262.02/194,199.80
  6. Step 6: Final answer
    x = 231,592.73

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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.