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Finding the Fourth Proportional to 66,063.62, 99,053.28 and 43,548.32

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Solution

The fourth proportional to 66,063.62, 99,053.28 and 43,548.32 is: 65,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.62 : 99,053.28 = 43,548.32 : x
  2. Step 2: Convert to fraction form
    66,063.62/99,053.28 = 43,548.32/x
  3. Step 3: Cross multiply
    66,063.62x = 99,053.28 × 43,548.32
  4. Step 4: Simplify right side
    66,063.62x = 4,313,603,439.22
  5. Step 5: Solve for x
    x = 4,313,603,439.22/66,063.62
  6. Step 6: Final answer
    x = 65,294.69

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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.