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Finding the Fourth Proportional to 108,736.20, 163,104.30 and 29,858.40

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Solution

The fourth proportional to 108,736.20, 163,104.30 and 29,858.40 is: 44,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,736.20 : 163,104.30 = 29,858.40 : x
  2. Step 2: Convert to fraction form
    108,736.20/163,104.30 = 29,858.40/x
  3. Step 3: Cross multiply
    108,736.20x = 163,104.30 × 29,858.40
  4. Step 4: Simplify right side
    108,736.20x = 4,870,033,431.12
  5. Step 5: Solve for x
    x = 4,870,033,431.12/108,736.20
  6. Step 6: Final answer
    x = 44,787.60

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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.