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Finding the Fourth Proportional to 195,508.92, 293,410.78 and 143,053.72

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Solution

The fourth proportional to 195,508.92, 293,410.78 and 143,053.72 is: 214,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,508.92 : 293,410.78 = 143,053.72 : x
  2. Step 2: Convert to fraction form
    195,508.92/293,410.78 = 143,053.72/x
  3. Step 3: Cross multiply
    195,508.92x = 293,410.78 × 143,053.72
  4. Step 4: Simplify right side
    195,508.92x = 41,973,503,567.10
  5. Step 5: Solve for x
    x = 41,973,503,567.10/195,508.92
  6. Step 6: Final answer
    x = 214,688.43

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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.