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Finding the Fourth Proportional to 84,329.92, 116,379.80 and 48,525.40

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Solution

The fourth proportional to 84,329.92, 116,379.80 and 48,525.40 is: 66,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,329.92 : 116,379.80 = 48,525.40 : x
  2. Step 2: Convert to fraction form
    84,329.92/116,379.80 = 48,525.40/x
  3. Step 3: Cross multiply
    84,329.92x = 116,379.80 × 48,525.40
  4. Step 4: Simplify right side
    84,329.92x = 5,647,376,346.92
  5. Step 5: Solve for x
    x = 5,647,376,346.92/84,329.92
  6. Step 6: Final answer
    x = 66,967.65

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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.