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Finding the Fourth Proportional to 252,716.64, 348,739.77 and 139,536.96

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Solution

The fourth proportional to 252,716.64, 348,739.77 and 139,536.96 is: 192,555.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,716.64 : 348,739.77 = 139,536.96 : x
  2. Step 2: Convert to fraction form
    252,716.64/348,739.77 = 139,536.96/x
  3. Step 3: Cross multiply
    252,716.64x = 348,739.77 × 139,536.96
  4. Step 4: Simplify right side
    252,716.64x = 48,662,087,336.90
  5. Step 5: Solve for x
    x = 48,662,087,336.90/252,716.64
  6. Step 6: Final answer
    x = 192,555.93

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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.