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Finding the Fourth Proportional to 89,871.80, 134,826.15 and 36,563.64

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Solution

The fourth proportional to 89,871.80, 134,826.15 and 36,563.64 is: 54,852.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,871.80 : 134,826.15 = 36,563.64 : x
  2. Step 2: Convert to fraction form
    89,871.80/134,826.15 = 36,563.64/x
  3. Step 3: Cross multiply
    89,871.80x = 134,826.15 × 36,563.64
  4. Step 4: Simplify right side
    89,871.80x = 4,929,734,702.99
  5. Step 5: Solve for x
    x = 4,929,734,702.99/89,871.80
  6. Step 6: Final answer
    x = 54,852.96

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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.