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Finding the Fourth Proportional to 68,590.44, 94,657.50 and 40,295.88

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Solution

The fourth proportional to 68,590.44, 94,657.50 and 40,295.88 is: 55,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,590.44 : 94,657.50 = 40,295.88 : x
  2. Step 2: Convert to fraction form
    68,590.44/94,657.50 = 40,295.88/x
  3. Step 3: Cross multiply
    68,590.44x = 94,657.50 × 40,295.88
  4. Step 4: Simplify right side
    68,590.44x = 3,814,307,261.10
  5. Step 5: Solve for x
    x = 3,814,307,261.10/68,590.44
  6. Step 6: Final answer
    x = 55,609.90

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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.