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Finding the Fourth Proportional to 178,192.60, 267,072.90 and 103,168.60

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Solution

The fourth proportional to 178,192.60, 267,072.90 and 103,168.60 is: 154,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,192.60 : 267,072.90 = 103,168.60 : x
  2. Step 2: Convert to fraction form
    178,192.60/267,072.90 = 103,168.60/x
  3. Step 3: Cross multiply
    178,192.60x = 267,072.90 × 103,168.60
  4. Step 4: Simplify right side
    178,192.60x = 27,553,537,190.94
  5. Step 5: Solve for x
    x = 27,553,537,190.94/178,192.60
  6. Step 6: Final answer
    x = 154,627.84

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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.