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Finding the Fourth Proportional to 148,057.52, 222,105.74 and 77,940.68

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Solution

The fourth proportional to 148,057.52, 222,105.74 and 77,940.68 is: 116,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,057.52 : 222,105.74 = 77,940.68 : x
  2. Step 2: Convert to fraction form
    148,057.52/222,105.74 = 77,940.68/x
  3. Step 3: Cross multiply
    148,057.52x = 222,105.74 × 77,940.68
  4. Step 4: Simplify right side
    148,057.52x = 17,311,070,907.27
  5. Step 5: Solve for x
    x = 17,311,070,907.27/148,057.52
  6. Step 6: Final answer
    x = 116,921.26

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1.5x scale

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.