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Finding the Fourth Proportional to 66,383.03, 99,514.31 and 33,113.30

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Solution

The fourth proportional to 66,383.03, 99,514.31 and 33,113.30 is: 49,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,383.03 : 99,514.31 = 33,113.30 : x
  2. Step 2: Convert to fraction form
    66,383.03/99,514.31 = 33,113.30/x
  3. Step 3: Cross multiply
    66,383.03x = 99,514.31 × 33,113.30
  4. Step 4: Simplify right side
    66,383.03x = 3,295,246,538.18
  5. Step 5: Solve for x
    x = 3,295,246,538.18/66,383.03
  6. Step 6: Final answer
    x = 49,639.90

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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.