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Finding the Fourth Proportional to 93,245.99, 139,990.94 and 55,364.41

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Solution

The fourth proportional to 93,245.99, 139,990.94 and 55,364.41 is: 83,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,245.99 : 139,990.94 = 55,364.41 : x
  2. Step 2: Convert to fraction form
    93,245.99/139,990.94 = 55,364.41/x
  3. Step 3: Cross multiply
    93,245.99x = 139,990.94 × 55,364.41
  4. Step 4: Simplify right side
    93,245.99x = 7,750,515,798.45
  5. Step 5: Solve for x
    x = 7,750,515,798.45/93,245.99
  6. Step 6: Final answer
    x = 83,119.03

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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.