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Finding the Fourth Proportional to 98,799, 148,198.27 and 76,342.34

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Solution

The fourth proportional to 98,799, 148,198.27 and 76,342.34 is: 114,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,799 : 148,198.27 = 76,342.34 : x
  2. Step 2: Convert to fraction form
    98,799/148,198.27 = 76,342.34/x
  3. Step 3: Cross multiply
    98,799x = 148,198.27 × 76,342.34
  4. Step 4: Simplify right side
    98,799x = 11,313,802,715.75
  5. Step 5: Solve for x
    x = 11,313,802,715.75/98,799
  6. Step 6: Final answer
    x = 114,513.33

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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.