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Finding the Fourth Proportional to 79,984.32, 110,379.24 and 46,009.68

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Solution

The fourth proportional to 79,984.32, 110,379.24 and 46,009.68 is: 63,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,984.32 : 110,379.24 = 46,009.68 : x
  2. Step 2: Convert to fraction form
    79,984.32/110,379.24 = 46,009.68/x
  3. Step 3: Cross multiply
    79,984.32x = 110,379.24 × 46,009.68
  4. Step 4: Simplify right side
    79,984.32x = 5,078,513,511.04
  5. Step 5: Solve for x
    x = 5,078,513,511.04/79,984.32
  6. Step 6: Final answer
    x = 63,493.86

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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.