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Finding the Fourth Proportional to 71,857.44, 99,083.52 and 58,897.44

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Solution

The fourth proportional to 71,857.44, 99,083.52 and 58,897.44 is: 81,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,857.44 : 99,083.52 = 58,897.44 : x
  2. Step 2: Convert to fraction form
    71,857.44/99,083.52 = 58,897.44/x
  3. Step 3: Cross multiply
    71,857.44x = 99,083.52 × 58,897.44
  4. Step 4: Simplify right side
    71,857.44x = 5,835,765,674.19
  5. Step 5: Solve for x
    x = 5,835,765,674.19/71,857.44
  6. Step 6: Final answer
    x = 81,213.10

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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.