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Finding the Fourth Proportional to 194,411.79, 290,959.02 and 119,579.40

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Solution

The fourth proportional to 194,411.79, 290,959.02 and 119,579.40 is: 178,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,411.79 : 290,959.02 = 119,579.40 : x
  2. Step 2: Convert to fraction form
    194,411.79/290,959.02 = 119,579.40/x
  3. Step 3: Cross multiply
    194,411.79x = 290,959.02 × 119,579.40
  4. Step 4: Simplify right side
    194,411.79x = 34,792,705,036.19
  5. Step 5: Solve for x
    x = 34,792,705,036.19/194,411.79
  6. Step 6: Final answer
    x = 178,963.97

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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.