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Finding the Fourth Proportional to 69,577.92, 95,974.81 and 61,485.62

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Solution

The fourth proportional to 69,577.92, 95,974.81 and 61,485.62 is: 84,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,577.92 : 95,974.81 = 61,485.62 : x
  2. Step 2: Convert to fraction form
    69,577.92/95,974.81 = 61,485.62/x
  3. Step 3: Cross multiply
    69,577.92x = 95,974.81 × 61,485.62
  4. Step 4: Simplify right side
    69,577.92x = 5,901,070,063.64
  5. Step 5: Solve for x
    x = 5,901,070,063.64/69,577.92
  6. Step 6: Final answer
    x = 84,812.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.