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Finding the Fourth Proportional to 71,807.64, 99,080.04 and 43,496.88

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Solution

The fourth proportional to 71,807.64, 99,080.04 and 43,496.88 is: 60,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,807.64 : 99,080.04 = 43,496.88 : x
  2. Step 2: Convert to fraction form
    71,807.64/99,080.04 = 43,496.88/x
  3. Step 3: Cross multiply
    71,807.64x = 99,080.04 × 43,496.88
  4. Step 4: Simplify right side
    71,807.64x = 4,309,672,610.28
  5. Step 5: Solve for x
    x = 4,309,672,610.28/71,807.64
  6. Step 6: Final answer
    x = 60,016.91

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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.