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Finding the Fourth Proportional to 108,216.68, 149,380.70 and 96,866.15

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Solution

The fourth proportional to 108,216.68, 149,380.70 and 96,866.15 is: 133,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,216.68 : 149,380.70 = 96,866.15 : x
  2. Step 2: Convert to fraction form
    108,216.68/149,380.70 = 96,866.15/x
  3. Step 3: Cross multiply
    108,216.68x = 149,380.70 × 96,866.15
  4. Step 4: Simplify right side
    108,216.68x = 14,469,932,062.07
  5. Step 5: Solve for x
    x = 14,469,932,062.07/108,216.68
  6. Step 6: Final answer
    x = 133,712.59

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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.