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Finding the Fourth Proportional to 79,308.80, 109,444.48 and 43,498.88

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Solution

The fourth proportional to 79,308.80, 109,444.48 and 43,498.88 is: 60,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.80 : 109,444.48 = 43,498.88 : x
  2. Step 2: Convert to fraction form
    79,308.80/109,444.48 = 43,498.88/x
  3. Step 3: Cross multiply
    79,308.80x = 109,444.48 × 43,498.88
  4. Step 4: Simplify right side
    79,308.80x = 4,760,712,302.18
  5. Step 5: Solve for x
    x = 4,760,712,302.18/79,308.80
  6. Step 6: Final answer
    x = 60,027.54

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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.