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Finding the Fourth Proportional to 353,649.92, 530,469.64 and 87,410.48

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Solution

The fourth proportional to 353,649.92, 530,469.64 and 87,410.48 is: 131,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,649.92 : 530,469.64 = 87,410.48 : x
  2. Step 2: Convert to fraction form
    353,649.92/530,469.64 = 87,410.48/x
  3. Step 3: Cross multiply
    353,649.92x = 530,469.64 × 87,410.48
  4. Step 4: Simplify right side
    353,649.92x = 46,368,605,857.83
  5. Step 5: Solve for x
    x = 46,368,605,857.83/353,649.92
  6. Step 6: Final answer
    x = 131,114.42

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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.