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Finding the Fourth Proportional to 89,903.86, 134,862.42 and 25,859.41

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Solution

The fourth proportional to 89,903.86, 134,862.42 and 25,859.41 is: 38,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,903.86 : 134,862.42 = 25,859.41 : x
  2. Step 2: Convert to fraction form
    89,903.86/134,862.42 = 25,859.41/x
  3. Step 3: Cross multiply
    89,903.86x = 134,862.42 × 25,859.41
  4. Step 4: Simplify right side
    89,903.86x = 3,487,463,130.97
  5. Step 5: Solve for x
    x = 3,487,463,130.97/89,903.86
  6. Step 6: Final answer
    x = 38,791.03

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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.