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Finding the Third Proportional to 132,972 and 199,555.50

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Solution

The third proportional to 132,972 and 199,555.50 is: 299,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,972 : 199,555.50 = 199,555.50 : x
  2. Step 2: Convert to fraction form
    132,972/199,555.50 = 199,555.50/x
  3. Step 3: Cross multiply
    132,972x = 199,555.50 × 199,555.50
  4. Step 4: Simplify right side
    132,972x = 39,822,397,580.25
  5. Step 5: Solve for x
    x = 39,822,397,580.25/132,972
  6. Step 6: Final answer
    x = 299,479.57

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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.