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Finding the Third Proportional to 108,639.75 and 162,328.88

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Solution

The third proportional to 108,639.75 and 162,328.88 is: 242,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,639.75 : 162,328.88 = 162,328.88 : x
  2. Step 2: Convert to fraction form
    108,639.75/162,328.88 = 162,328.88/x
  3. Step 3: Cross multiply
    108,639.75x = 162,328.88 × 162,328.88
  4. Step 4: Simplify right side
    108,639.75x = 26,350,663,658.77
  5. Step 5: Solve for x
    x = 26,350,663,658.77/108,639.75
  6. Step 6: Final answer
    x = 242,550.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.