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Finding the Fourth Proportional to 424,651.50, 637,075.68 and 144,168.76

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Solution

The fourth proportional to 424,651.50, 637,075.68 and 144,168.76 is: 216,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,651.50 : 637,075.68 = 144,168.76 : x
  2. Step 2: Convert to fraction form
    424,651.50/637,075.68 = 144,168.76/x
  3. Step 3: Cross multiply
    424,651.50x = 637,075.68 × 144,168.76
  4. Step 4: Simplify right side
    424,651.50x = 91,846,410,811.76
  5. Step 5: Solve for x
    x = 91,846,410,811.76/424,651.50
  6. Step 6: Final answer
    x = 216,286.56

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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.