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Finding the Third Proportional to 157,628.25 and 242,289

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Solution

The third proportional to 157,628.25 and 242,289 is: 372,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628.25 : 242,289 = 242,289 : x
  2. Step 2: Convert to fraction form
    157,628.25/242,289 = 242,289/x
  3. Step 3: Cross multiply
    157,628.25x = 242,289 × 242,289
  4. Step 4: Simplify right side
    157,628.25x = 58,703,959,521
  5. Step 5: Solve for x
    x = 58,703,959,521/157,628.25
  6. Step 6: Final answer
    x = 372,420.30

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.