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Finding the Fourth Proportional to 168,056.73, 231,915.51 and 91,576.76

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Solution

The fourth proportional to 168,056.73, 231,915.51 and 91,576.76 is: 126,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,056.73 : 231,915.51 = 91,576.76 : x
  2. Step 2: Convert to fraction form
    168,056.73/231,915.51 = 91,576.76/x
  3. Step 3: Cross multiply
    168,056.73x = 231,915.51 × 91,576.76
  4. Step 4: Simplify right side
    168,056.73x = 21,238,069,839.97
  5. Step 5: Solve for x
    x = 21,238,069,839.97/168,056.73
  6. Step 6: Final answer
    x = 126,374.41

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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.