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Finding the Fourth Proportional to 252,914.68, 349,029.34 and 139,744.76

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Solution

The fourth proportional to 252,914.68, 349,029.34 and 139,744.76 is: 192,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,914.68 : 349,029.34 = 139,744.76 : x
  2. Step 2: Convert to fraction form
    252,914.68/349,029.34 = 139,744.76/x
  3. Step 3: Cross multiply
    252,914.68x = 349,029.34 × 139,744.76
  4. Step 4: Simplify right side
    252,914.68x = 48,775,021,351.26
  5. Step 5: Solve for x
    x = 48,775,021,351.26/252,914.68
  6. Step 6: Final answer
    x = 192,851.68

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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.