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Finding the Fourth Proportional to 75,969.60, 104,816.70 and 43,702.53

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Solution

The fourth proportional to 75,969.60, 104,816.70 and 43,702.53 is: 60,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,969.60 : 104,816.70 = 43,702.53 : x
  2. Step 2: Convert to fraction form
    75,969.60/104,816.70 = 43,702.53/x
  3. Step 3: Cross multiply
    75,969.60x = 104,816.70 × 43,702.53
  4. Step 4: Simplify right side
    75,969.60x = 4,580,754,976.25
  5. Step 5: Solve for x
    x = 4,580,754,976.25/75,969.60
  6. Step 6: Final answer
    x = 60,297.21

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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.