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Finding the Fourth Proportional to 108,383.62, 162,487.91 and 99,635.62

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Solution

The fourth proportional to 108,383.62, 162,487.91 and 99,635.62 is: 149,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,383.62 : 162,487.91 = 99,635.62 : x
  2. Step 2: Convert to fraction form
    108,383.62/162,487.91 = 99,635.62/x
  3. Step 3: Cross multiply
    108,383.62x = 162,487.91 × 99,635.62
  4. Step 4: Simplify right side
    108,383.62x = 16,189,583,655.35
  5. Step 5: Solve for x
    x = 16,189,583,655.35/108,383.62
  6. Step 6: Final answer
    x = 149,372.97

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1.5x scale

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.