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Finding the Fourth Proportional to 90,564.77, 135,794.48 and 60,613.20

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Solution

The fourth proportional to 90,564.77, 135,794.48 and 60,613.20 is: 90,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,564.77 : 135,794.48 = 60,613.20 : x
  2. Step 2: Convert to fraction form
    90,564.77/135,794.48 = 60,613.20/x
  3. Step 3: Cross multiply
    90,564.77x = 135,794.48 × 60,613.20
  4. Step 4: Simplify right side
    90,564.77x = 8,230,937,672.07
  5. Step 5: Solve for x
    x = 8,230,937,672.07/90,564.77
  6. Step 6: Final answer
    x = 90,884.54

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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.