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Finding the Fourth Proportional to 71,875.99, 107,736.57 and 34,356.28

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Solution

The fourth proportional to 71,875.99, 107,736.57 and 34,356.28 is: 51,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,875.99 : 107,736.57 = 34,356.28 : x
  2. Step 2: Convert to fraction form
    71,875.99/107,736.57 = 34,356.28/x
  3. Step 3: Cross multiply
    71,875.99x = 107,736.57 × 34,356.28
  4. Step 4: Simplify right side
    71,875.99x = 3,701,427,765.16
  5. Step 5: Solve for x
    x = 3,701,427,765.16/71,875.99
  6. Step 6: Final answer
    x = 51,497.42

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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.