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Finding the Fourth Proportional to 72,310.75, 108,536.27 and 34,897.16

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Solution

The fourth proportional to 72,310.75, 108,536.27 and 34,897.16 is: 52,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,310.75 : 108,536.27 = 34,897.16 : x
  2. Step 2: Convert to fraction form
    72,310.75/108,536.27 = 34,897.16/x
  3. Step 3: Cross multiply
    72,310.75x = 108,536.27 × 34,897.16
  4. Step 4: Simplify right side
    72,310.75x = 3,787,607,579.99
  5. Step 5: Solve for x
    x = 3,787,607,579.99/72,310.75
  6. Step 6: Final answer
    x = 52,379.59

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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.