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Finding the Fourth Proportional to 178,878.40, 267,626.40 and 116,670.40

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Solution

The fourth proportional to 178,878.40, 267,626.40 and 116,670.40 is: 174,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,878.40 : 267,626.40 = 116,670.40 : x
  2. Step 2: Convert to fraction form
    178,878.40/267,626.40 = 116,670.40/x
  3. Step 3: Cross multiply
    178,878.40x = 267,626.40 × 116,670.40
  4. Step 4: Simplify right side
    178,878.40x = 31,224,079,138.56
  5. Step 5: Solve for x
    x = 31,224,079,138.56/178,878.40
  6. Step 6: Final answer
    x = 174,554.78

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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.