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Finding the Fourth Proportional to 104,762.98, 144,603.43 and 68,469.71

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Solution

The fourth proportional to 104,762.98, 144,603.43 and 68,469.71 is: 94,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,762.98 : 144,603.43 = 68,469.71 : x
  2. Step 2: Convert to fraction form
    104,762.98/144,603.43 = 68,469.71/x
  3. Step 3: Cross multiply
    104,762.98x = 144,603.43 × 68,469.71
  4. Step 4: Simplify right side
    104,762.98x = 9,900,955,107.44
  5. Step 5: Solve for x
    x = 9,900,955,107.44/104,762.98
  6. Step 6: Final answer
    x = 94,508.15

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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.