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Finding the Fourth Proportional to 60,402.56, 90,568.56 and 18,270.08

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Solution

The fourth proportional to 60,402.56, 90,568.56 and 18,270.08 is: 27,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,402.56 : 90,568.56 = 18,270.08 : x
  2. Step 2: Convert to fraction form
    60,402.56/90,568.56 = 18,270.08/x
  3. Step 3: Cross multiply
    60,402.56x = 90,568.56 × 18,270.08
  4. Step 4: Simplify right side
    60,402.56x = 1,654,694,836.68
  5. Step 5: Solve for x
    x = 1,654,694,836.68/60,402.56
  6. Step 6: Final answer
    x = 27,394.45

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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.