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Finding the Fourth Proportional to 84,365, 116,425.62 and 54,608.84

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Solution

The fourth proportional to 84,365, 116,425.62 and 54,608.84 is: 75,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,365 : 116,425.62 = 54,608.84 : x
  2. Step 2: Convert to fraction form
    84,365/116,425.62 = 54,608.84/x
  3. Step 3: Cross multiply
    84,365x = 116,425.62 × 54,608.84
  4. Step 4: Simplify right side
    84,365x = 6,357,868,054.48
  5. Step 5: Solve for x
    x = 6,357,868,054.48/84,365
  6. Step 6: Final answer
    x = 75,361.44

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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.