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Finding the Third Proportional to 118,975.50 and 257,553

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Solution

The third proportional to 118,975.50 and 257,553 is: 557,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,975.50 : 257,553 = 257,553 : x
  2. Step 2: Convert to fraction form
    118,975.50/257,553 = 257,553/x
  3. Step 3: Cross multiply
    118,975.50x = 257,553 × 257,553
  4. Step 4: Simplify right side
    118,975.50x = 66,333,547,809
  5. Step 5: Solve for x
    x = 66,333,547,809/118,975.50
  6. Step 6: Final answer
    x = 557,539.56

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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.