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Finding the Fourth Proportional to 79,713.60, 110,005.47 and 43,904.85

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Solution

The fourth proportional to 79,713.60, 110,005.47 and 43,904.85 is: 60,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713.60 : 110,005.47 = 43,904.85 : x
  2. Step 2: Convert to fraction form
    79,713.60/110,005.47 = 43,904.85/x
  3. Step 3: Cross multiply
    79,713.60x = 110,005.47 × 43,904.85
  4. Step 4: Simplify right side
    79,713.60x = 4,829,773,659.53
  5. Step 5: Solve for x
    x = 4,829,773,659.53/79,713.60
  6. Step 6: Final answer
    x = 60,589.08

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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.