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Finding the Fourth Proportional to 66,536.40, 99,737.40 and 33,205.20

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Solution

The fourth proportional to 66,536.40, 99,737.40 and 33,205.20 is: 49,774.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.40 : 99,737.40 = 33,205.20 : x
  2. Step 2: Convert to fraction form
    66,536.40/99,737.40 = 33,205.20/x
  3. Step 3: Cross multiply
    66,536.40x = 99,737.40 × 33,205.20
  4. Step 4: Simplify right side
    66,536.40x = 3,311,800,314.48
  5. Step 5: Solve for x
    x = 3,311,800,314.48/66,536.40
  6. Step 6: Final answer
    x = 49,774.26

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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.