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Finding the Fourth Proportional to 108,676.56, 163,005.88 and 76,955.60

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Solution

The fourth proportional to 108,676.56, 163,005.88 and 76,955.60 is: 115,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,676.56 : 163,005.88 = 76,955.60 : x
  2. Step 2: Convert to fraction form
    108,676.56/163,005.88 = 76,955.60/x
  3. Step 3: Cross multiply
    108,676.56x = 163,005.88 × 76,955.60
  4. Step 4: Simplify right side
    108,676.56x = 12,544,215,298.93
  5. Step 5: Solve for x
    x = 12,544,215,298.93/108,676.56
  6. Step 6: Final answer
    x = 115,427.06

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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.