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Finding the Fourth Proportional to 93,446.40, 140,169.60 and 92,863.20

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Solution

The fourth proportional to 93,446.40, 140,169.60 and 92,863.20 is: 139,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,446.40 : 140,169.60 = 92,863.20 : x
  2. Step 2: Convert to fraction form
    93,446.40/140,169.60 = 92,863.20/x
  3. Step 3: Cross multiply
    93,446.40x = 140,169.60 × 92,863.20
  4. Step 4: Simplify right side
    93,446.40x = 13,016,597,598.72
  5. Step 5: Solve for x
    x = 13,016,597,598.72/93,446.40
  6. Step 6: Final answer
    x = 139,294.80

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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.