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Finding the Fourth Proportional to 111,916.40, 167,874.60 and 94,201.70

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Solution

The fourth proportional to 111,916.40, 167,874.60 and 94,201.70 is: 141,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,916.40 : 167,874.60 = 94,201.70 : x
  2. Step 2: Convert to fraction form
    111,916.40/167,874.60 = 94,201.70/x
  3. Step 3: Cross multiply
    111,916.40x = 167,874.60 × 94,201.70
  4. Step 4: Simplify right side
    111,916.40x = 15,814,072,706.82
  5. Step 5: Solve for x
    x = 15,814,072,706.82/111,916.40
  6. Step 6: Final answer
    x = 141,302.55

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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.