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Finding the Fourth Proportional to 75,328.56, 113,029.56 and 30,968.64

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Solution

The fourth proportional to 75,328.56, 113,029.56 and 30,968.64 is: 46,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328.56 : 113,029.56 = 30,968.64 : x
  2. Step 2: Convert to fraction form
    75,328.56/113,029.56 = 30,968.64/x
  3. Step 3: Cross multiply
    75,328.56x = 113,029.56 × 30,968.64
  4. Step 4: Simplify right side
    75,328.56x = 3,500,371,753.00
  5. Step 5: Solve for x
    x = 3,500,371,753.00/75,328.56
  6. Step 6: Final answer
    x = 46,468.06

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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.