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Finding the Fourth Proportional to 330,420.80, 495,650.08 and 93,744.80

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Solution

The fourth proportional to 330,420.80, 495,650.08 and 93,744.80 is: 140,622.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,420.80 : 495,650.08 = 93,744.80 : x
  2. Step 2: Convert to fraction form
    330,420.80/495,650.08 = 93,744.80/x
  3. Step 3: Cross multiply
    330,420.80x = 495,650.08 × 93,744.80
  4. Step 4: Simplify right side
    330,420.80x = 46,464,617,619.58
  5. Step 5: Solve for x
    x = 46,464,617,619.58/330,420.80
  6. Step 6: Final answer
    x = 140,622.56

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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.