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Finding the Fourth Proportional to 63,185.60, 87,192.12 and 34,891.88

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Solution

The fourth proportional to 63,185.60, 87,192.12 and 34,891.88 is: 48,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,185.60 : 87,192.12 = 34,891.88 : x
  2. Step 2: Convert to fraction form
    63,185.60/87,192.12 = 34,891.88/x
  3. Step 3: Cross multiply
    63,185.60x = 87,192.12 × 34,891.88
  4. Step 4: Simplify right side
    63,185.60x = 3,042,296,987.99
  5. Step 5: Solve for x
    x = 3,042,296,987.99/63,185.60
  6. Step 6: Final answer
    x = 48,148.58

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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.