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Finding the Fourth Proportional to 353,874.39, 530,808.35 and 143,462.31

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Solution

The fourth proportional to 353,874.39, 530,808.35 and 143,462.31 is: 215,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,874.39 : 530,808.35 = 143,462.31 : x
  2. Step 2: Convert to fraction form
    353,874.39/530,808.35 = 143,462.31/x
  3. Step 3: Cross multiply
    353,874.39x = 530,808.35 × 143,462.31
  4. Step 4: Simplify right side
    353,874.39x = 76,150,991,340.98
  5. Step 5: Solve for x
    x = 76,150,991,340.98/353,874.39
  6. Step 6: Final answer
    x = 215,192.15

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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.