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Finding the Fourth Proportional to 108,728.99, 163,104.69 and 37,651.49

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Solution

The fourth proportional to 108,728.99, 163,104.69 and 37,651.49 is: 56,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,728.99 : 163,104.69 = 37,651.49 : x
  2. Step 2: Convert to fraction form
    108,728.99/163,104.69 = 37,651.49/x
  3. Step 3: Cross multiply
    108,728.99x = 163,104.69 × 37,651.49
  4. Step 4: Simplify right side
    108,728.99x = 6,141,134,604.49
  5. Step 5: Solve for x
    x = 6,141,134,604.49/108,728.99
  6. Step 6: Final answer
    x = 56,481.12

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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.