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Finding the Fourth Proportional to 108,622.62, 149,898.87 and 63,327.42

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Solution

The fourth proportional to 108,622.62, 149,898.87 and 63,327.42 is: 87,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,622.62 : 149,898.87 = 63,327.42 : x
  2. Step 2: Convert to fraction form
    108,622.62/149,898.87 = 63,327.42/x
  3. Step 3: Cross multiply
    108,622.62x = 149,898.87 × 63,327.42
  4. Step 4: Simplify right side
    108,622.62x = 9,492,708,698.02
  5. Step 5: Solve for x
    x = 9,492,708,698.02/108,622.62
  6. Step 6: Final answer
    x = 87,391.64

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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.