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Finding the Fourth Proportional to 194,263.97, 291,442.59 and 74,318.94

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Solution

The fourth proportional to 194,263.97, 291,442.59 and 74,318.94 is: 111,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,263.97 : 291,442.59 = 74,318.94 : x
  2. Step 2: Convert to fraction form
    194,263.97/291,442.59 = 74,318.94/x
  3. Step 3: Cross multiply
    194,263.97x = 291,442.59 × 74,318.94
  4. Step 4: Simplify right side
    194,263.97x = 21,659,704,359.65
  5. Step 5: Solve for x
    x = 21,659,704,359.65/194,263.97
  6. Step 6: Final answer
    x = 111,496.25

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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.