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Finding the Fourth Proportional to 252,628.66, 348,629.97 and 139,448.98

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Solution

The fourth proportional to 252,628.66, 348,629.97 and 139,448.98 is: 192,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,628.66 : 348,629.97 = 139,448.98 : x
  2. Step 2: Convert to fraction form
    252,628.66/348,629.97 = 139,448.98/x
  3. Step 3: Cross multiply
    252,628.66x = 348,629.97 × 139,448.98
  4. Step 4: Simplify right side
    252,628.66x = 48,616,093,713.93
  5. Step 5: Solve for x
    x = 48,616,093,713.93/252,628.66
  6. Step 6: Final answer
    x = 192,440.93

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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.