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Finding the Fourth Proportional to 252,910.94, 349,012.94 and 139,744.22

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Solution

The fourth proportional to 252,910.94, 349,012.94 and 139,744.22 is: 192,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,910.94 : 349,012.94 = 139,744.22 : x
  2. Step 2: Convert to fraction form
    252,910.94/349,012.94 = 139,744.22/x
  3. Step 3: Cross multiply
    252,910.94x = 349,012.94 × 139,744.22
  4. Step 4: Simplify right side
    252,910.94x = 48,772,541,070.21
  5. Step 5: Solve for x
    x = 48,772,541,070.21/252,910.94
  6. Step 6: Final answer
    x = 192,844.73

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1.5x scale

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.