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Finding the Fourth Proportional to 330,297.41, 495,633.14 and 140,737.82

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Solution

The fourth proportional to 330,297.41, 495,633.14 and 140,737.82 is: 211,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,297.41 : 495,633.14 = 140,737.82 : x
  2. Step 2: Convert to fraction form
    330,297.41/495,633.14 = 140,737.82/x
  3. Step 3: Cross multiply
    330,297.41x = 495,633.14 × 140,737.82
  4. Step 4: Simplify right side
    330,297.41x = 69,754,324,461.50
  5. Step 5: Solve for x
    x = 69,754,324,461.50/330,297.41
  6. Step 6: Final answer
    x = 211,186.41

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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.