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Finding the Fourth Proportional to 84,395.88, 116,373.58 and 54,169.79

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Solution

The fourth proportional to 84,395.88, 116,373.58 and 54,169.79 is: 74,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,395.88 : 116,373.58 = 54,169.79 : x
  2. Step 2: Convert to fraction form
    84,395.88/116,373.58 = 54,169.79/x
  3. Step 3: Cross multiply
    84,395.88x = 116,373.58 × 54,169.79
  4. Step 4: Simplify right side
    84,395.88x = 6,303,931,537.43
  5. Step 5: Solve for x
    x = 6,303,931,537.43/84,395.88
  6. Step 6: Final answer
    x = 74,694.78

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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.