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Finding the Fourth Proportional to 75,361.25, 104,009.33 and 45,147.84

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Solution

The fourth proportional to 75,361.25, 104,009.33 and 45,147.84 is: 62,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,361.25 : 104,009.33 = 45,147.84 : x
  2. Step 2: Convert to fraction form
    75,361.25/104,009.33 = 45,147.84/x
  3. Step 3: Cross multiply
    75,361.25x = 104,009.33 × 45,147.84
  4. Step 4: Simplify right side
    75,361.25x = 4,695,796,702.22
  5. Step 5: Solve for x
    x = 4,695,796,702.22/75,361.25
  6. Step 6: Final answer
    x = 62,310.50

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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.