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Finding the Fourth Proportional to 104,166.81, 156,259.44 and 29,287.61

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Solution

The fourth proportional to 104,166.81, 156,259.44 and 29,287.61 is: 43,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,166.81 : 156,259.44 = 29,287.61 : x
  2. Step 2: Convert to fraction form
    104,166.81/156,259.44 = 29,287.61/x
  3. Step 3: Cross multiply
    104,166.81x = 156,259.44 × 29,287.61
  4. Step 4: Simplify right side
    104,166.81x = 4,576,464,609.80
  5. Step 5: Solve for x
    x = 4,576,464,609.80/104,166.81
  6. Step 6: Final answer
    x = 43,934.00

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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.