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Finding the Fourth Proportional to 84,729.78, 116,927.21 and 47,004.03

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Solution

The fourth proportional to 84,729.78, 116,927.21 and 47,004.03 is: 64,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,729.78 : 116,927.21 = 47,004.03 : x
  2. Step 2: Convert to fraction form
    84,729.78/116,927.21 = 47,004.03/x
  3. Step 3: Cross multiply
    84,729.78x = 116,927.21 × 47,004.03
  4. Step 4: Simplify right side
    84,729.78x = 5,496,049,851.64
  5. Step 5: Solve for x
    x = 5,496,049,851.64/84,729.78
  6. Step 6: Final answer
    x = 64,865.62

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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.