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Finding the Fourth Proportional to 96,876.88, 145,338.74 and 33,687.88

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Solution

The fourth proportional to 96,876.88, 145,338.74 and 33,687.88 is: 50,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,876.88 : 145,338.74 = 33,687.88 : x
  2. Step 2: Convert to fraction form
    96,876.88/145,338.74 = 33,687.88/x
  3. Step 3: Cross multiply
    96,876.88x = 145,338.74 × 33,687.88
  4. Step 4: Simplify right side
    96,876.88x = 4,896,154,032.47
  5. Step 5: Solve for x
    x = 4,896,154,032.47/96,876.88
  6. Step 6: Final answer
    x = 50,539.96

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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.