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Finding the Fourth Proportional to 252,409.44, 348,324.48 and 139,232.64

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Solution

The fourth proportional to 252,409.44, 348,324.48 and 139,232.64 is: 192,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,409.44 : 348,324.48 = 139,232.64 : x
  2. Step 2: Convert to fraction form
    252,409.44/348,324.48 = 139,232.64/x
  3. Step 3: Cross multiply
    252,409.44x = 348,324.48 × 139,232.64
  4. Step 4: Simplify right side
    252,409.44x = 48,498,136,927.03
  5. Step 5: Solve for x
    x = 48,498,136,927.03/252,409.44
  6. Step 6: Final answer
    x = 192,140.74

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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.