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Finding the Fourth Proportional to 178,516.60, 267,774.90 and 73,281.40

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Solution

The fourth proportional to 178,516.60, 267,774.90 and 73,281.40 is: 109,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,516.60 : 267,774.90 = 73,281.40 : x
  2. Step 2: Convert to fraction form
    178,516.60/267,774.90 = 73,281.40/x
  3. Step 3: Cross multiply
    178,516.60x = 267,774.90 × 73,281.40
  4. Step 4: Simplify right side
    178,516.60x = 19,622,919,556.86
  5. Step 5: Solve for x
    x = 19,622,919,556.86/178,516.60
  6. Step 6: Final answer
    x = 109,922.10

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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.