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Finding the Fourth Proportional to 66,695.96, 100,093.16 and 53,705.16

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Solution

The fourth proportional to 66,695.96, 100,093.16 and 53,705.16 is: 80,597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.96 : 100,093.16 = 53,705.16 : x
  2. Step 2: Convert to fraction form
    66,695.96/100,093.16 = 53,705.16/x
  3. Step 3: Cross multiply
    66,695.96x = 100,093.16 × 53,705.16
  4. Step 4: Simplify right side
    66,695.96x = 5,375,519,172.71
  5. Step 5: Solve for x
    x = 5,375,519,172.71/66,695.96
  6. Step 6: Final answer
    x = 80,597.37

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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.