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Finding the Fourth Proportional to 92,013.99, 138,021.01 and 28,839.01

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Solution

The fourth proportional to 92,013.99, 138,021.01 and 28,839.01 is: 43,258.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,013.99 : 138,021.01 = 28,839.01 : x
  2. Step 2: Convert to fraction form
    92,013.99/138,021.01 = 28,839.01/x
  3. Step 3: Cross multiply
    92,013.99x = 138,021.01 × 28,839.01
  4. Step 4: Simplify right side
    92,013.99x = 3,980,389,287.60
  5. Step 5: Solve for x
    x = 3,980,389,287.60/92,013.99
  6. Step 6: Final answer
    x = 43,258.53

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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.