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Finding the Fourth Proportional to 267,147.75, 368,663.90 and 147,915.75

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Solution

The fourth proportional to 267,147.75, 368,663.90 and 147,915.75 is: 204,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,147.75 : 368,663.90 = 147,915.75 : x
  2. Step 2: Convert to fraction form
    267,147.75/368,663.90 = 147,915.75/x
  3. Step 3: Cross multiply
    267,147.75x = 368,663.90 × 147,915.75
  4. Step 4: Simplify right side
    267,147.75x = 54,531,196,526.85
  5. Step 5: Solve for x
    x = 54,531,196,526.85/267,147.75
  6. Step 6: Final answer
    x = 204,123.74

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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.