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Finding the Fourth Proportional to 254,966.33, 382,453.45 and 65,422.69

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Solution

The fourth proportional to 254,966.33, 382,453.45 and 65,422.69 is: 98,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,966.33 : 382,453.45 = 65,422.69 : x
  2. Step 2: Convert to fraction form
    254,966.33/382,453.45 = 65,422.69/x
  3. Step 3: Cross multiply
    254,966.33x = 382,453.45 × 65,422.69
  4. Step 4: Simplify right side
    254,966.33x = 25,021,132,379.09
  5. Step 5: Solve for x
    x = 25,021,132,379.09/254,966.33
  6. Step 6: Final answer
    x = 98,135.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.