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Finding the Fourth Proportional to 252,859.74, 349,015.98 and 157,309.44

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Solution

The fourth proportional to 252,859.74, 349,015.98 and 157,309.44 is: 217,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,859.74 : 349,015.98 = 157,309.44 : x
  2. Step 2: Convert to fraction form
    252,859.74/349,015.98 = 157,309.44/x
  3. Step 3: Cross multiply
    252,859.74x = 349,015.98 × 157,309.44
  4. Step 4: Simplify right side
    252,859.74x = 54,903,508,364.85
  5. Step 5: Solve for x
    x = 54,903,508,364.85/252,859.74
  6. Step 6: Final answer
    x = 217,130.29

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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.