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Finding the Fourth Proportional to 96,687.58, 133,428.28 and 54,246

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Solution

The fourth proportional to 96,687.58, 133,428.28 and 54,246 is: 74,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,687.58 : 133,428.28 = 54,246 : x
  2. Step 2: Convert to fraction form
    96,687.58/133,428.28 = 54,246/x
  3. Step 3: Cross multiply
    96,687.58x = 133,428.28 × 54,246
  4. Step 4: Simplify right side
    96,687.58x = 7,237,950,476.88
  5. Step 5: Solve for x
    x = 7,237,950,476.88/96,687.58
  6. Step 6: Final answer
    x = 74,859.15

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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.