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Finding the Fourth Proportional to 178,169.60, 267,254.40 and 162,099.20

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Solution

The fourth proportional to 178,169.60, 267,254.40 and 162,099.20 is: 243,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,169.60 : 267,254.40 = 162,099.20 : x
  2. Step 2: Convert to fraction form
    178,169.60/267,254.40 = 162,099.20/x
  3. Step 3: Cross multiply
    178,169.60x = 267,254.40 × 162,099.20
  4. Step 4: Simplify right side
    178,169.60x = 43,321,724,436.48
  5. Step 5: Solve for x
    x = 43,321,724,436.48/178,169.60
  6. Step 6: Final answer
    x = 243,148.80

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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.