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Finding the Fourth Proportional to 88,466.40, 132,613.20 and 79,135.20

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Solution

The fourth proportional to 88,466.40, 132,613.20 and 79,135.20 is: 118,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,466.40 : 132,613.20 = 79,135.20 : x
  2. Step 2: Convert to fraction form
    88,466.40/132,613.20 = 79,135.20/x
  3. Step 3: Cross multiply
    88,466.40x = 132,613.20 × 79,135.20
  4. Step 4: Simplify right side
    88,466.40x = 10,494,372,104.64
  5. Step 5: Solve for x
    x = 10,494,372,104.64/88,466.40
  6. Step 6: Final answer
    x = 118,625.51

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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.