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Finding the Fourth Proportional to 194,331.48, 290,838.79 and 119,499.01

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Solution

The fourth proportional to 194,331.48, 290,838.79 and 119,499.01 is: 178,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,331.48 : 290,838.79 = 119,499.01 : x
  2. Step 2: Convert to fraction form
    194,331.48/290,838.79 = 119,499.01/x
  3. Step 3: Cross multiply
    194,331.48x = 290,838.79 × 119,499.01
  4. Step 4: Simplify right side
    194,331.48x = 34,754,947,474.60
  5. Step 5: Solve for x
    x = 34,754,947,474.60/194,331.48
  6. Step 6: Final answer
    x = 178,843.63

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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.