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Finding the Fourth Proportional to 84,752.91, 116,980.52 and 57,906.27

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Solution

The fourth proportional to 84,752.91, 116,980.52 and 57,906.27 is: 79,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,752.91 : 116,980.52 = 57,906.27 : x
  2. Step 2: Convert to fraction form
    84,752.91/116,980.52 = 57,906.27/x
  3. Step 3: Cross multiply
    84,752.91x = 116,980.52 × 57,906.27
  4. Step 4: Simplify right side
    84,752.91x = 6,773,905,286.33
  5. Step 5: Solve for x
    x = 6,773,905,286.33/84,752.91
  6. Step 6: Final answer
    x = 79,925.34

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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.