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Finding the Third Proportional to 74,070 and 160,200

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Solution

The third proportional to 74,070 and 160,200 is: 346,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070 : 160,200 = 160,200 : x
  2. Step 2: Convert to fraction form
    74,070/160,200 = 160,200/x
  3. Step 3: Cross multiply
    74,070x = 160,200 × 160,200
  4. Step 4: Simplify right side
    74,070x = 25,664,040,000
  5. Step 5: Solve for x
    x = 25,664,040,000/74,070
  6. Step 6: Final answer
    x = 346,483.60

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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.