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Finding the Fourth Proportional to 330,157.22, 495,432.86 and 119,811.56

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Solution

The fourth proportional to 330,157.22, 495,432.86 and 119,811.56 is: 179,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,157.22 : 495,432.86 = 119,811.56 : x
  2. Step 2: Convert to fraction form
    330,157.22/495,432.86 = 119,811.56/x
  3. Step 3: Cross multiply
    330,157.22x = 495,432.86 × 119,811.56
  4. Step 4: Simplify right side
    330,157.22x = 59,358,580,755.64
  5. Step 5: Solve for x
    x = 59,358,580,755.64/330,157.22
  6. Step 6: Final answer
    x = 179,788.83

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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.