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Finding the Fourth Proportional to 104,656.82, 156,990.67 and 34,541.60

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Solution

The fourth proportional to 104,656.82, 156,990.67 and 34,541.60 is: 51,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,656.82 : 156,990.67 = 34,541.60 : x
  2. Step 2: Convert to fraction form
    104,656.82/156,990.67 = 34,541.60/x
  3. Step 3: Cross multiply
    104,656.82x = 156,990.67 × 34,541.60
  4. Step 4: Simplify right side
    104,656.82x = 5,422,708,926.87
  5. Step 5: Solve for x
    x = 5,422,708,926.87/104,656.82
  6. Step 6: Final answer
    x = 51,814.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.