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Finding the Fourth Proportional to 108,651.17, 162,935.79 and 45,475.67

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Solution

The fourth proportional to 108,651.17, 162,935.79 and 45,475.67 is: 68,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,651.17 : 162,935.79 = 45,475.67 : x
  2. Step 2: Convert to fraction form
    108,651.17/162,935.79 = 45,475.67/x
  3. Step 3: Cross multiply
    108,651.17x = 162,935.79 × 45,475.67
  4. Step 4: Simplify right side
    108,651.17x = 7,409,614,217.23
  5. Step 5: Solve for x
    x = 7,409,614,217.23/108,651.17
  6. Step 6: Final answer
    x = 68,196.36

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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.