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Finding the Fourth Proportional to 108,906.60, 163,398.30 and 105,066.60

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Solution

The fourth proportional to 108,906.60, 163,398.30 and 105,066.60 is: 157,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,906.60 : 163,398.30 = 105,066.60 : x
  2. Step 2: Convert to fraction form
    108,906.60/163,398.30 = 105,066.60/x
  3. Step 3: Cross multiply
    108,906.60x = 163,398.30 × 105,066.60
  4. Step 4: Simplify right side
    108,906.60x = 17,167,703,826.78
  5. Step 5: Solve for x
    x = 17,167,703,826.78/108,906.60
  6. Step 6: Final answer
    x = 157,636.95

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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.