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Finding the Fourth Proportional to 143,604.96, 215,407.56 and 64,626.96

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Solution

The fourth proportional to 143,604.96, 215,407.56 and 64,626.96 is: 96,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,604.96 : 215,407.56 = 64,626.96 : x
  2. Step 2: Convert to fraction form
    143,604.96/215,407.56 = 64,626.96/x
  3. Step 3: Cross multiply
    143,604.96x = 215,407.56 × 64,626.96
  4. Step 4: Simplify right side
    143,604.96x = 13,921,135,763.82
  5. Step 5: Solve for x
    x = 13,921,135,763.82/143,604.96
  6. Step 6: Final answer
    x = 96,940.49

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1.5x scale

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.