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Finding the Fourth Proportional to 98,620.27, 147,915.82 and 36,276.19

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Solution

The fourth proportional to 98,620.27, 147,915.82 and 36,276.19 is: 54,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,620.27 : 147,915.82 = 36,276.19 : x
  2. Step 2: Convert to fraction form
    98,620.27/147,915.82 = 36,276.19/x
  3. Step 3: Cross multiply
    98,620.27x = 147,915.82 × 36,276.19
  4. Step 4: Simplify right side
    98,620.27x = 5,365,822,390.33
  5. Step 5: Solve for x
    x = 5,365,822,390.33/98,620.27
  6. Step 6: Final answer
    x = 54,408.92

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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.