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Finding the Fourth Proportional to 76,697.28, 114,948.48 and 34,532.16

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Solution

The fourth proportional to 76,697.28, 114,948.48 and 34,532.16 is: 51,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,697.28 : 114,948.48 = 34,532.16 : x
  2. Step 2: Convert to fraction form
    76,697.28/114,948.48 = 34,532.16/x
  3. Step 3: Cross multiply
    76,697.28x = 114,948.48 × 34,532.16
  4. Step 4: Simplify right side
    76,697.28x = 3,969,419,303.12
  5. Step 5: Solve for x
    x = 3,969,419,303.12/76,697.28
  6. Step 6: Final answer
    x = 51,754.37

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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.