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Finding the Fourth Proportional to 178,384.60, 267,576.90 and 73,149.40

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Solution

The fourth proportional to 178,384.60, 267,576.90 and 73,149.40 is: 109,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,384.60 : 267,576.90 = 73,149.40 : x
  2. Step 2: Convert to fraction form
    178,384.60/267,576.90 = 73,149.40/x
  3. Step 3: Cross multiply
    178,384.60x = 267,576.90 × 73,149.40
  4. Step 4: Simplify right side
    178,384.60x = 19,573,089,688.86
  5. Step 5: Solve for x
    x = 19,573,089,688.86/178,384.60
  6. Step 6: Final answer
    x = 109,724.10

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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.