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Finding the Fourth Proportional to 108,654.75, 149,944.10 and 63,364.14

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Solution

The fourth proportional to 108,654.75, 149,944.10 and 63,364.14 is: 87,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,654.75 : 149,944.10 = 63,364.14 : x
  2. Step 2: Convert to fraction form
    108,654.75/149,944.10 = 63,364.14/x
  3. Step 3: Cross multiply
    108,654.75x = 149,944.10 × 63,364.14
  4. Step 4: Simplify right side
    108,654.75x = 9,501,078,627.75
  5. Step 5: Solve for x
    x = 9,501,078,627.75/108,654.75
  6. Step 6: Final answer
    x = 87,442.83

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1.5x scale

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.