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Finding the Fourth Proportional to 330,129.09, 495,226.44 and 119,783.43

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Solution

The fourth proportional to 330,129.09, 495,226.44 and 119,783.43 is: 179,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,129.09 : 495,226.44 = 119,783.43 : x
  2. Step 2: Convert to fraction form
    330,129.09/495,226.44 = 119,783.43/x
  3. Step 3: Cross multiply
    330,129.09x = 495,226.44 × 119,783.43
  4. Step 4: Simplify right side
    330,129.09x = 59,319,921,609.89
  5. Step 5: Solve for x
    x = 59,319,921,609.89/330,129.09
  6. Step 6: Final answer
    x = 179,687.05

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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.