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Finding the Fourth Proportional to 151,704, 209,361.60 and 84,637.44

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Solution

The fourth proportional to 151,704, 209,361.60 and 84,637.44 is: 116,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,704 : 209,361.60 = 84,637.44 : x
  2. Step 2: Convert to fraction form
    151,704/209,361.60 = 84,637.44/x
  3. Step 3: Cross multiply
    151,704x = 209,361.60 × 84,637.44
  4. Step 4: Simplify right side
    151,704x = 17,719,829,858.30
  5. Step 5: Solve for x
    x = 17,719,829,858.30/151,704
  6. Step 6: Final answer
    x = 116,805.29

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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.