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Finding the Fourth Proportional to 178,416.20, 267,537.90 and 99,446.60

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Solution

The fourth proportional to 178,416.20, 267,537.90 and 99,446.60 is: 149,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,416.20 : 267,537.90 = 99,446.60 : x
  2. Step 2: Convert to fraction form
    178,416.20/267,537.90 = 99,446.60/x
  3. Step 3: Cross multiply
    178,416.20x = 267,537.90 × 99,446.60
  4. Step 4: Simplify right side
    178,416.20x = 26,605,734,526.14
  5. Step 5: Solve for x
    x = 26,605,734,526.14/178,416.20
  6. Step 6: Final answer
    x = 149,121.74

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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.