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Finding the Fourth Proportional to 89,489.80, 134,526.30 and 63,375.40

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Solution

The fourth proportional to 89,489.80, 134,526.30 and 63,375.40 is: 95,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.80 : 134,526.30 = 63,375.40 : x
  2. Step 2: Convert to fraction form
    89,489.80/134,526.30 = 63,375.40/x
  3. Step 3: Cross multiply
    89,489.80x = 134,526.30 × 63,375.40
  4. Step 4: Simplify right side
    89,489.80x = 8,525,658,073.02
  5. Step 5: Solve for x
    x = 8,525,658,073.02/89,489.80
  6. Step 6: Final answer
    x = 95,269.61

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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.