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Finding the Third Proportional to 118,390 and 260,106

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Solution

The third proportional to 118,390 and 260,106 is: 571,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,390 : 260,106 = 260,106 : x
  2. Step 2: Convert to fraction form
    118,390/260,106 = 260,106/x
  3. Step 3: Cross multiply
    118,390x = 260,106 × 260,106
  4. Step 4: Simplify right side
    118,390x = 67,655,131,236
  5. Step 5: Solve for x
    x = 67,655,131,236/118,390
  6. Step 6: Final answer
    x = 571,459.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.