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Finding the Fourth Proportional to 93,287.70, 139,951.44 and 30,111.42

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Solution

The fourth proportional to 93,287.70, 139,951.44 and 30,111.42 is: 45,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.70 : 139,951.44 = 30,111.42 : x
  2. Step 2: Convert to fraction form
    93,287.70/139,951.44 = 30,111.42/x
  3. Step 3: Cross multiply
    93,287.70x = 139,951.44 × 30,111.42
  4. Step 4: Simplify right side
    93,287.70x = 4,214,136,589.44
  5. Step 5: Solve for x
    x = 4,214,136,589.44/93,287.70
  6. Step 6: Final answer
    x = 45,173.55

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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.