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Finding the Fourth Proportional to 228,828.37, 315,753.93 and 126,852.89

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Solution

The fourth proportional to 228,828.37, 315,753.93 and 126,852.89 is: 175,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,828.37 : 315,753.93 = 126,852.89 : x
  2. Step 2: Convert to fraction form
    228,828.37/315,753.93 = 126,852.89/x
  3. Step 3: Cross multiply
    228,828.37x = 315,753.93 × 126,852.89
  4. Step 4: Simplify right side
    228,828.37x = 40,054,299,503.88
  5. Step 5: Solve for x
    x = 40,054,299,503.88/228,828.37
  6. Step 6: Final answer
    x = 175,040.79

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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.