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Finding the Fourth Proportional to 108,955.44, 150,374.76 and 66,538.56

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Solution

The fourth proportional to 108,955.44, 150,374.76 and 66,538.56 is: 91,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,955.44 : 150,374.76 = 66,538.56 : x
  2. Step 2: Convert to fraction form
    108,955.44/150,374.76 = 66,538.56/x
  3. Step 3: Cross multiply
    108,955.44x = 150,374.76 × 66,538.56
  4. Step 4: Simplify right side
    108,955.44x = 10,005,719,990.75
  5. Step 5: Solve for x
    x = 10,005,719,990.75/108,955.44
  6. Step 6: Final answer
    x = 91,833.14

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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.