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Finding the Fourth Proportional to 89,702.40, 134,529.30 and 26,522.40

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Solution

The fourth proportional to 89,702.40, 134,529.30 and 26,522.40 is: 39,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,702.40 : 134,529.30 = 26,522.40 : x
  2. Step 2: Convert to fraction form
    89,702.40/134,529.30 = 26,522.40/x
  3. Step 3: Cross multiply
    89,702.40x = 134,529.30 × 26,522.40
  4. Step 4: Simplify right side
    89,702.40x = 3,568,039,906.32
  5. Step 5: Solve for x
    x = 3,568,039,906.32/89,702.40
  6. Step 6: Final answer
    x = 39,776.42

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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.