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Finding the Fourth Proportional to 102,154.44, 140,974.38 and 57,442.44

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Solution

The fourth proportional to 102,154.44, 140,974.38 and 57,442.44 is: 79,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,154.44 : 140,974.38 = 57,442.44 : x
  2. Step 2: Convert to fraction form
    102,154.44/140,974.38 = 57,442.44/x
  3. Step 3: Cross multiply
    102,154.44x = 140,974.38 × 57,442.44
  4. Step 4: Simplify right side
    102,154.44x = 8,097,912,364.69
  5. Step 5: Solve for x
    x = 8,097,912,364.69/102,154.44
  6. Step 6: Final answer
    x = 79,271.27

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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.