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Finding the Third Proportional to 99,951.75 and 215,907.75

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Solution

The third proportional to 99,951.75 and 215,907.75 is: 466,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,951.75 : 215,907.75 = 215,907.75 : x
  2. Step 2: Convert to fraction form
    99,951.75/215,907.75 = 215,907.75/x
  3. Step 3: Cross multiply
    99,951.75x = 215,907.75 × 215,907.75
  4. Step 4: Simplify right side
    99,951.75x = 46,616,156,510.06
  5. Step 5: Solve for x
    x = 46,616,156,510.06/99,951.75
  6. Step 6: Final answer
    x = 466,386.60

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.