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Finding the Third Proportional to 64,702.50 and 99,102

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Solution

The third proportional to 64,702.50 and 99,102 is: 151,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,702.50 : 99,102 = 99,102 : x
  2. Step 2: Convert to fraction form
    64,702.50/99,102 = 99,102/x
  3. Step 3: Cross multiply
    64,702.50x = 99,102 × 99,102
  4. Step 4: Simplify right side
    64,702.50x = 9,821,206,404
  5. Step 5: Solve for x
    x = 9,821,206,404/64,702.50
  6. Step 6: Final answer
    x = 151,790.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.