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Finding the Third Proportional to 67,312.50 and 104,209.50

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Solution

The third proportional to 67,312.50 and 104,209.50 is: 161,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,312.50 : 104,209.50 = 104,209.50 : x
  2. Step 2: Convert to fraction form
    67,312.50/104,209.50 = 104,209.50/x
  3. Step 3: Cross multiply
    67,312.50x = 104,209.50 × 104,209.50
  4. Step 4: Simplify right side
    67,312.50x = 10,859,619,890.25
  5. Step 5: Solve for x
    x = 10,859,619,890.25/67,312.50
  6. Step 6: Final answer
    x = 161,331.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.