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Finding the Fourth Proportional to 252,688.94, 348,715.23 and 139,504.94

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Solution

The fourth proportional to 252,688.94, 348,715.23 and 139,504.94 is: 192,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,688.94 : 348,715.23 = 139,504.94 : x
  2. Step 2: Convert to fraction form
    252,688.94/348,715.23 = 139,504.94/x
  3. Step 3: Cross multiply
    252,688.94x = 348,715.23 × 139,504.94
  4. Step 4: Simplify right side
    252,688.94x = 48,647,497,238.24
  5. Step 5: Solve for x
    x = 48,647,497,238.24/252,688.94
  6. Step 6: Final answer
    x = 192,519.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.