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Finding the Fourth Proportional to 194,662.94, 268,616.18 and 118,223.87

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Solution

The fourth proportional to 194,662.94, 268,616.18 and 118,223.87 is: 163,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,662.94 : 268,616.18 = 118,223.87 : x
  2. Step 2: Convert to fraction form
    194,662.94/268,616.18 = 118,223.87/x
  3. Step 3: Cross multiply
    194,662.94x = 268,616.18 × 118,223.87
  4. Step 4: Simplify right side
    194,662.94x = 31,756,843,296.70
  5. Step 5: Solve for x
    x = 31,756,843,296.70/194,662.94
  6. Step 6: Final answer
    x = 163,137.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.