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Finding the Fourth Proportional to 330,289.81, 495,434.71 and 93,634.54

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Solution

The fourth proportional to 330,289.81, 495,434.71 and 93,634.54 is: 140,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,289.81 : 495,434.71 = 93,634.54 : x
  2. Step 2: Convert to fraction form
    330,289.81/495,434.71 = 93,634.54/x
  3. Step 3: Cross multiply
    330,289.81x = 495,434.71 × 93,634.54
  4. Step 4: Simplify right side
    330,289.81x = 46,389,801,170.88
  5. Step 5: Solve for x
    x = 46,389,801,170.88/330,289.81
  6. Step 6: Final answer
    x = 140,451.81

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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.