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Finding the Fourth Proportional to 503,441.97, 755,047.56 and 143,605.98

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Solution

The fourth proportional to 503,441.97, 755,047.56 and 143,605.98 is: 215,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,441.97 : 755,047.56 = 143,605.98 : x
  2. Step 2: Convert to fraction form
    503,441.97/755,047.56 = 143,605.98/x
  3. Step 3: Cross multiply
    503,441.97x = 755,047.56 × 143,605.98
  4. Step 4: Simplify right side
    503,441.97x = 108,429,344,800.41
  5. Step 5: Solve for x
    x = 108,429,344,800.41/503,441.97
  6. Step 6: Final answer
    x = 215,376.05

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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.