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Finding the Third Proportional to 100,607.50 and 141,011

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Solution

The third proportional to 100,607.50 and 141,011 is: 197,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,607.50 : 141,011 = 141,011 : x
  2. Step 2: Convert to fraction form
    100,607.50/141,011 = 141,011/x
  3. Step 3: Cross multiply
    100,607.50x = 141,011 × 141,011
  4. Step 4: Simplify right side
    100,607.50x = 19,884,102,121
  5. Step 5: Solve for x
    x = 19,884,102,121/100,607.50
  6. Step 6: Final answer
    x = 197,640.36

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.