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Finding the Fourth Proportional to 58,615.63, 87,672.25 and 54,361.24

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Solution

The fourth proportional to 58,615.63, 87,672.25 and 54,361.24 is: 81,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,615.63 : 87,672.25 = 54,361.24 : x
  2. Step 2: Convert to fraction form
    58,615.63/87,672.25 = 54,361.24/x
  3. Step 3: Cross multiply
    58,615.63x = 87,672.25 × 54,361.24
  4. Step 4: Simplify right side
    58,615.63x = 4,765,972,223.59
  5. Step 5: Solve for x
    x = 4,765,972,223.59/58,615.63
  6. Step 6: Final answer
    x = 81,308.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.