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Finding the Fourth Proportional to 104,297.16, 143,919.42 and 64,012.62

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Solution

The fourth proportional to 104,297.16, 143,919.42 and 64,012.62 is: 88,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,297.16 : 143,919.42 = 64,012.62 : x
  2. Step 2: Convert to fraction form
    104,297.16/143,919.42 = 64,012.62/x
  3. Step 3: Cross multiply
    104,297.16x = 143,919.42 × 64,012.62
  4. Step 4: Simplify right side
    104,297.16x = 9,212,659,143.08
  5. Step 5: Solve for x
    x = 9,212,659,143.08/104,297.16
  6. Step 6: Final answer
    x = 88,330.87

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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.