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Finding the Fourth Proportional to 108,546, 149,798.08 and 63,216.68

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Solution

The fourth proportional to 108,546, 149,798.08 and 63,216.68 is: 87,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,546 : 149,798.08 = 63,216.68 : x
  2. Step 2: Convert to fraction form
    108,546/149,798.08 = 63,216.68/x
  3. Step 3: Cross multiply
    108,546x = 149,798.08 × 63,216.68
  4. Step 4: Simplify right side
    108,546x = 9,469,737,287.97
  5. Step 5: Solve for x
    x = 9,469,737,287.97/108,546
  6. Step 6: Final answer
    x = 87,241.70

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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.