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Finding the Fourth Proportional to 74,859.66, 112,295.03 and 21,549.48

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Solution

The fourth proportional to 74,859.66, 112,295.03 and 21,549.48 is: 32,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,859.66 : 112,295.03 = 21,549.48 : x
  2. Step 2: Convert to fraction form
    74,859.66/112,295.03 = 21,549.48/x
  3. Step 3: Cross multiply
    74,859.66x = 112,295.03 × 21,549.48
  4. Step 4: Simplify right side
    74,859.66x = 2,419,899,395.34
  5. Step 5: Solve for x
    x = 2,419,899,395.34/74,859.66
  6. Step 6: Final answer
    x = 32,325.81

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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.