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Finding the Fourth Proportional to 96,905.88, 145,270.80 and 34,561.80

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Solution

The fourth proportional to 96,905.88, 145,270.80 and 34,561.80 is: 51,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,905.88 : 145,270.80 = 34,561.80 : x
  2. Step 2: Convert to fraction form
    96,905.88/145,270.80 = 34,561.80/x
  3. Step 3: Cross multiply
    96,905.88x = 145,270.80 × 34,561.80
  4. Step 4: Simplify right side
    96,905.88x = 5,020,820,335.44
  5. Step 5: Solve for x
    x = 5,020,820,335.44/96,905.88
  6. Step 6: Final answer
    x = 51,811.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.