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Finding the Fourth Proportional to 108,610.84, 149,880.50 and 63,286

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Solution

The fourth proportional to 108,610.84, 149,880.50 and 63,286 is: 87,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.84 : 149,880.50 = 63,286 : x
  2. Step 2: Convert to fraction form
    108,610.84/149,880.50 = 63,286/x
  3. Step 3: Cross multiply
    108,610.84x = 149,880.50 × 63,286
  4. Step 4: Simplify right side
    108,610.84x = 9,485,337,323
  5. Step 5: Solve for x
    x = 9,485,337,323/108,610.84
  6. Step 6: Final answer
    x = 87,333.25

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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.