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Finding the Fourth Proportional to 330,470.88, 495,705.30 and 93,813.72

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Solution

The fourth proportional to 330,470.88, 495,705.30 and 93,813.72 is: 140,720.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,470.88 : 495,705.30 = 93,813.72 : x
  2. Step 2: Convert to fraction form
    330,470.88/495,705.30 = 93,813.72/x
  3. Step 3: Cross multiply
    330,470.88x = 495,705.30 × 93,813.72
  4. Step 4: Simplify right side
    330,470.88x = 46,503,958,216.72
  5. Step 5: Solve for x
    x = 46,503,958,216.72/330,470.88
  6. Step 6: Final answer
    x = 140,720.29

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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.