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Finding the Fourth Proportional to 79,548.48, 109,779.84 and 43,741.62

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Solution

The fourth proportional to 79,548.48, 109,779.84 and 43,741.62 is: 60,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,548.48 : 109,779.84 = 43,741.62 : x
  2. Step 2: Convert to fraction form
    79,548.48/109,779.84 = 43,741.62/x
  3. Step 3: Cross multiply
    79,548.48x = 109,779.84 × 43,741.62
  4. Step 4: Simplify right side
    79,548.48x = 4,801,948,044.94
  5. Step 5: Solve for x
    x = 4,801,948,044.94/79,548.48
  6. Step 6: Final answer
    x = 60,365.05

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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.