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Finding the Fourth Proportional to 266,865.76, 368,205.60 and 159,388.48

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Solution

The fourth proportional to 266,865.76, 368,205.60 and 159,388.48 is: 219,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,865.76 : 368,205.60 = 159,388.48 : x
  2. Step 2: Convert to fraction form
    266,865.76/368,205.60 = 159,388.48/x
  3. Step 3: Cross multiply
    266,865.76x = 368,205.60 × 159,388.48
  4. Step 4: Simplify right side
    266,865.76x = 58,687,730,911.49
  5. Step 5: Solve for x
    x = 58,687,730,911.49/266,865.76
  6. Step 6: Final answer
    x = 219,914.80

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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.