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Finding the Fourth Proportional to 309,629.56, 464,522.28 and 88,013.56

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Solution

The fourth proportional to 309,629.56, 464,522.28 and 88,013.56 is: 132,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.56 : 464,522.28 = 88,013.56 : x
  2. Step 2: Convert to fraction form
    309,629.56/464,522.28 = 88,013.56/x
  3. Step 3: Cross multiply
    309,629.56x = 464,522.28 × 88,013.56
  4. Step 4: Simplify right side
    309,629.56x = 40,884,259,562.12
  5. Step 5: Solve for x
    x = 40,884,259,562.12/309,629.56
  6. Step 6: Final answer
    x = 132,042.49

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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.