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Finding the Fourth Proportional to 93,274.86, 139,939.53 and 30,093.58

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Solution

The fourth proportional to 93,274.86, 139,939.53 and 30,093.58 is: 45,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,274.86 : 139,939.53 = 30,093.58 : x
  2. Step 2: Convert to fraction form
    93,274.86/139,939.53 = 30,093.58/x
  3. Step 3: Cross multiply
    93,274.86x = 139,939.53 × 30,093.58
  4. Step 4: Simplify right side
    93,274.86x = 4,211,280,885.41
  5. Step 5: Solve for x
    x = 4,211,280,885.41/93,274.86
  6. Step 6: Final answer
    x = 45,149.15

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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.