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Finding the Fourth Proportional to 178,442.91, 267,579.60 and 103,586.01

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Solution

The fourth proportional to 178,442.91, 267,579.60 and 103,586.01 is: 155,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,442.91 : 267,579.60 = 103,586.01 : x
  2. Step 2: Convert to fraction form
    178,442.91/267,579.60 = 103,586.01/x
  3. Step 3: Cross multiply
    178,442.91x = 267,579.60 × 103,586.01
  4. Step 4: Simplify right side
    178,442.91x = 27,717,503,121.40
  5. Step 5: Solve for x
    x = 27,717,503,121.40/178,442.91
  6. Step 6: Final answer
    x = 155,329.81

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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.