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Finding the Fourth Proportional to 141,696.56, 212,257.44 and 65,688.20

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Solution

The fourth proportional to 141,696.56, 212,257.44 and 65,688.20 is: 98,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,696.56 : 212,257.44 = 65,688.20 : x
  2. Step 2: Convert to fraction form
    141,696.56/212,257.44 = 65,688.20/x
  3. Step 3: Cross multiply
    141,696.56x = 212,257.44 × 65,688.20
  4. Step 4: Simplify right side
    141,696.56x = 13,942,809,170.21
  5. Step 5: Solve for x
    x = 13,942,809,170.21/141,696.56
  6. Step 6: Final answer
    x = 98,399.07

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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.