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Finding the Fourth Proportional to 84,093.98, 115,955.41 and 68,732.85

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Solution

The fourth proportional to 84,093.98, 115,955.41 and 68,732.85 is: 94,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,093.98 : 115,955.41 = 68,732.85 : x
  2. Step 2: Convert to fraction form
    84,093.98/115,955.41 = 68,732.85/x
  3. Step 3: Cross multiply
    84,093.98x = 115,955.41 × 68,732.85
  4. Step 4: Simplify right side
    84,093.98x = 7,969,945,802.22
  5. Step 5: Solve for x
    x = 7,969,945,802.22/84,093.98
  6. Step 6: Final answer
    x = 94,774.27

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1.5x scale

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.