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Finding the Fourth Proportional to 503,432.46, 755,033.37 and 143,596.47

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Solution

The fourth proportional to 503,432.46, 755,033.37 and 143,596.47 is: 215,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,432.46 : 755,033.37 = 143,596.47 : x
  2. Step 2: Convert to fraction form
    503,432.46/755,033.37 = 143,596.47/x
  3. Step 3: Cross multiply
    503,432.46x = 755,033.37 × 143,596.47
  4. Step 4: Simplify right side
    503,432.46x = 108,420,128,957.09
  5. Step 5: Solve for x
    x = 108,420,128,957.09/503,432.46
  6. Step 6: Final answer
    x = 215,361.82

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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.