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Finding the Fourth Proportional to 68,965.70, 103,029.30 and 43,804.26

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Solution

The fourth proportional to 68,965.70, 103,029.30 and 43,804.26 is: 65,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965.70 : 103,029.30 = 43,804.26 : x
  2. Step 2: Convert to fraction form
    68,965.70/103,029.30 = 43,804.26/x
  3. Step 3: Cross multiply
    68,965.70x = 103,029.30 × 43,804.26
  4. Step 4: Simplify right side
    68,965.70x = 4,513,122,244.82
  5. Step 5: Solve for x
    x = 4,513,122,244.82/68,965.70
  6. Step 6: Final answer
    x = 65,440.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.