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Finding the Fourth Proportional to 84,487.31, 116,584.52 and 50,489.03

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Solution

The fourth proportional to 84,487.31, 116,584.52 and 50,489.03 is: 69,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,487.31 : 116,584.52 = 50,489.03 : x
  2. Step 2: Convert to fraction form
    84,487.31/116,584.52 = 50,489.03/x
  3. Step 3: Cross multiply
    84,487.31x = 116,584.52 × 50,489.03
  4. Step 4: Simplify right side
    84,487.31x = 5,886,239,327.82
  5. Step 5: Solve for x
    x = 5,886,239,327.82/84,487.31
  6. Step 6: Final answer
    x = 69,670.10

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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.