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Finding the Fourth Proportional to 108,481.40, 149,687.06 and 60,736.76

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Solution

The fourth proportional to 108,481.40, 149,687.06 and 60,736.76 is: 83,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,481.40 : 149,687.06 = 60,736.76 : x
  2. Step 2: Convert to fraction form
    108,481.40/149,687.06 = 60,736.76/x
  3. Step 3: Cross multiply
    108,481.40x = 149,687.06 × 60,736.76
  4. Step 4: Simplify right side
    108,481.40x = 9,091,507,038.33
  5. Step 5: Solve for x
    x = 9,091,507,038.33/108,481.40
  6. Step 6: Final answer
    x = 83,807.06

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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.