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Finding the Fourth Proportional to 72,266.88, 108,310.08 and 34,820.04

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Solution

The fourth proportional to 72,266.88, 108,310.08 and 34,820.04 is: 52,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,266.88 : 108,310.08 = 34,820.04 : x
  2. Step 2: Convert to fraction form
    72,266.88/108,310.08 = 34,820.04/x
  3. Step 3: Cross multiply
    72,266.88x = 108,310.08 × 34,820.04
  4. Step 4: Simplify right side
    72,266.88x = 3,771,361,318.00
  5. Step 5: Solve for x
    x = 3,771,361,318.00/72,266.88
  6. Step 6: Final answer
    x = 52,186.58

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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.