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Finding the Fourth Proportional to 353,641.41, 530,452.40 and 153,961.43

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Solution

The fourth proportional to 353,641.41, 530,452.40 and 153,961.43 is: 230,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,641.41 : 530,452.40 = 153,961.43 : x
  2. Step 2: Convert to fraction form
    353,641.41/530,452.40 = 153,961.43/x
  3. Step 3: Cross multiply
    353,641.41x = 530,452.40 × 153,961.43
  4. Step 4: Simplify right side
    353,641.41x = 81,669,206,628.86
  5. Step 5: Solve for x
    x = 81,669,206,628.86/353,641.41
  6. Step 6: Final answer
    x = 230,937.91

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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.