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Finding the Third Proportional to 153,918.56 and 245,882.25

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Solution

The third proportional to 153,918.56 and 245,882.25 is: 392,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,918.56 : 245,882.25 = 245,882.25 : x
  2. Step 2: Convert to fraction form
    153,918.56/245,882.25 = 245,882.25/x
  3. Step 3: Cross multiply
    153,918.56x = 245,882.25 × 245,882.25
  4. Step 4: Simplify right side
    153,918.56x = 60,458,080,865.06
  5. Step 5: Solve for x
    x = 60,458,080,865.06/153,918.56
  6. Step 6: Final answer
    x = 392,792.66

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.