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Finding the Fourth Proportional to 194,395.66, 291,593.50 and 54,153.88

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Solution

The fourth proportional to 194,395.66, 291,593.50 and 54,153.88 is: 81,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,395.66 : 291,593.50 = 54,153.88 : x
  2. Step 2: Convert to fraction form
    194,395.66/291,593.50 = 54,153.88/x
  3. Step 3: Cross multiply
    194,395.66x = 291,593.50 × 54,153.88
  4. Step 4: Simplify right side
    194,395.66x = 15,790,919,407.78
  5. Step 5: Solve for x
    x = 15,790,919,407.78/194,395.66
  6. Step 6: Final answer
    x = 81,230.82

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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.