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Finding the Fourth Proportional to 330,828.65, 495,443.64 and 188,241.92

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Solution

The fourth proportional to 330,828.65, 495,443.64 and 188,241.92 is: 281,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,828.65 : 495,443.64 = 188,241.92 : x
  2. Step 2: Convert to fraction form
    330,828.65/495,443.64 = 188,241.92/x
  3. Step 3: Cross multiply
    330,828.65x = 495,443.64 × 188,241.92
  4. Step 4: Simplify right side
    330,828.65x = 93,263,263,860.00
  5. Step 5: Solve for x
    x = 93,263,263,860.00/330,828.65
  6. Step 6: Final answer
    x = 281,908.06

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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.