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Finding the Fourth Proportional to 201,076.68, 301,615.56 and 67,921.32

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Solution

The fourth proportional to 201,076.68, 301,615.56 and 67,921.32 is: 101,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,076.68 : 301,615.56 = 67,921.32 : x
  2. Step 2: Convert to fraction form
    201,076.68/301,615.56 = 67,921.32/x
  3. Step 3: Cross multiply
    201,076.68x = 301,615.56 × 67,921.32
  4. Step 4: Simplify right side
    201,076.68x = 20,486,126,967.74
  5. Step 5: Solve for x
    x = 20,486,126,967.74/201,076.68
  6. Step 6: Final answer
    x = 101,882.16

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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.