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Finding the Fourth Proportional to 252,498.94, 348,448.57 and 139,321.69

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Solution

The fourth proportional to 252,498.94, 348,448.57 and 139,321.69 is: 192,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,498.94 : 348,448.57 = 139,321.69 : x
  2. Step 2: Convert to fraction form
    252,498.94/348,448.57 = 139,321.69/x
  3. Step 3: Cross multiply
    252,498.94x = 348,448.57 × 139,321.69
  4. Step 4: Simplify right side
    252,498.94x = 48,546,442,431.06
  5. Step 5: Solve for x
    x = 48,546,442,431.06/252,498.94
  6. Step 6: Final answer
    x = 192,263.95

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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.