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Finding the Fourth Proportional to 111,753.48, 154,219.79 and 61,452.48

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Solution

The fourth proportional to 111,753.48, 154,219.79 and 61,452.48 is: 84,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,753.48 : 154,219.79 = 61,452.48 : x
  2. Step 2: Convert to fraction form
    111,753.48/154,219.79 = 61,452.48/x
  3. Step 3: Cross multiply
    111,753.48x = 154,219.79 × 61,452.48
  4. Step 4: Simplify right side
    111,753.48x = 9,477,188,714.21
  5. Step 5: Solve for x
    x = 9,477,188,714.21/111,753.48
  6. Step 6: Final answer
    x = 84,804.42

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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.