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Finding the Fourth Proportional to 108,658.52, 163,051.32 and 45,473.36

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Solution

The fourth proportional to 108,658.52, 163,051.32 and 45,473.36 is: 68,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658.52 : 163,051.32 = 45,473.36 : x
  2. Step 2: Convert to fraction form
    108,658.52/163,051.32 = 45,473.36/x
  3. Step 3: Cross multiply
    108,658.52x = 163,051.32 × 45,473.36
  4. Step 4: Simplify right side
    108,658.52x = 7,414,491,372.84
  5. Step 5: Solve for x
    x = 7,414,491,372.84/108,658.52
  6. Step 6: Final answer
    x = 68,236.63

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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.