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Finding the Fourth Proportional to 194,491.72, 291,737.64 and 61,382.36

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Solution

The fourth proportional to 194,491.72, 291,737.64 and 61,382.36 is: 92,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,491.72 : 291,737.64 = 61,382.36 : x
  2. Step 2: Convert to fraction form
    194,491.72/291,737.64 = 61,382.36/x
  3. Step 3: Cross multiply
    194,491.72x = 291,737.64 × 61,382.36
  4. Step 4: Simplify right side
    194,491.72x = 17,907,544,844.03
  5. Step 5: Solve for x
    x = 17,907,544,844.03/194,491.72
  6. Step 6: Final answer
    x = 92,073.56

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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.