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Finding the Fourth Proportional to 252,490.92, 348,435.72 and 139,313.94

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Solution

The fourth proportional to 252,490.92, 348,435.72 and 139,313.94 is: 192,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,490.92 : 348,435.72 = 139,313.94 : x
  2. Step 2: Convert to fraction form
    252,490.92/348,435.72 = 139,313.94/x
  3. Step 3: Cross multiply
    252,490.92x = 348,435.72 × 139,313.94
  4. Step 4: Simplify right side
    252,490.92x = 48,541,952,989.94
  5. Step 5: Solve for x
    x = 48,541,952,989.94/252,490.92
  6. Step 6: Final answer
    x = 192,252.27

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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.