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Finding the Fourth Proportional to 68,445.17, 102,452.66 and 43,513.37

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Solution

The fourth proportional to 68,445.17, 102,452.66 and 43,513.37 is: 65,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,445.17 : 102,452.66 = 43,513.37 : x
  2. Step 2: Convert to fraction form
    68,445.17/102,452.66 = 43,513.37/x
  3. Step 3: Cross multiply
    68,445.17x = 102,452.66 × 43,513.37
  4. Step 4: Simplify right side
    68,445.17x = 4,458,060,354.72
  5. Step 5: Solve for x
    x = 4,458,060,354.72/68,445.17
  6. Step 6: Final answer
    x = 65,133.31

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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.