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Finding the Fourth Proportional to 178,445.92, 267,683.44 and 89,653.60

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Solution

The fourth proportional to 178,445.92, 267,683.44 and 89,653.60 is: 134,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,445.92 : 267,683.44 = 89,653.60 : x
  2. Step 2: Convert to fraction form
    178,445.92/267,683.44 = 89,653.60/x
  3. Step 3: Cross multiply
    178,445.92x = 267,683.44 × 89,653.60
  4. Step 4: Simplify right side
    178,445.92x = 23,998,784,056.38
  5. Step 5: Solve for x
    x = 23,998,784,056.38/178,445.92
  6. Step 6: Final answer
    x = 134,487.72

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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.