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Finding the Fourth Proportional to 108,504.55, 149,731.90 and 63,183.84

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Solution

The fourth proportional to 108,504.55, 149,731.90 and 63,183.84 is: 87,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,504.55 : 149,731.90 = 63,183.84 : x
  2. Step 2: Convert to fraction form
    108,504.55/149,731.90 = 63,183.84/x
  3. Step 3: Cross multiply
    108,504.55x = 149,731.90 × 63,183.84
  4. Step 4: Simplify right side
    108,504.55x = 9,460,636,412.50
  5. Step 5: Solve for x
    x = 9,460,636,412.50/108,504.55
  6. Step 6: Final answer
    x = 87,191.15

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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.