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Finding the Fourth Proportional to 178,665.60, 267,920.64 and 89,863.68

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Solution

The fourth proportional to 178,665.60, 267,920.64 and 89,863.68 is: 134,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,665.60 : 267,920.64 = 89,863.68 : x
  2. Step 2: Convert to fraction form
    178,665.60/267,920.64 = 89,863.68/x
  3. Step 3: Cross multiply
    178,665.60x = 267,920.64 × 89,863.68
  4. Step 4: Simplify right side
    178,665.60x = 24,076,334,658.36
  5. Step 5: Solve for x
    x = 24,076,334,658.36/178,665.60
  6. Step 6: Final answer
    x = 134,756.41

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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.