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Finding the Fourth Proportional to 330,385.30, 495,596.79 and 93,709.38

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Solution

The fourth proportional to 330,385.30, 495,596.79 and 93,709.38 is: 140,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,385.30 : 495,596.79 = 93,709.38 : x
  2. Step 2: Convert to fraction form
    330,385.30/495,596.79 = 93,709.38/x
  3. Step 3: Cross multiply
    330,385.30x = 495,596.79 × 93,709.38
  4. Step 4: Simplify right side
    330,385.30x = 46,442,067,920.89
  5. Step 5: Solve for x
    x = 46,442,067,920.89/330,385.30
  6. Step 6: Final answer
    x = 140,569.41

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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.