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Finding the Third Proportional to 153,416 and 329,600

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Solution

The third proportional to 153,416 and 329,600 is: 708,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,416 : 329,600 = 329,600 : x
  2. Step 2: Convert to fraction form
    153,416/329,600 = 329,600/x
  3. Step 3: Cross multiply
    153,416x = 329,600 × 329,600
  4. Step 4: Simplify right side
    153,416x = 108,636,160,000
  5. Step 5: Solve for x
    x = 108,636,160,000/153,416
  6. Step 6: Final answer
    x = 708,114.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.