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Finding the Fourth Proportional to 424,649.50, 637,072.68 and 144,166.76

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Solution

The fourth proportional to 424,649.50, 637,072.68 and 144,166.76 is: 216,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,649.50 : 637,072.68 = 144,166.76 : x
  2. Step 2: Convert to fraction form
    424,649.50/637,072.68 = 144,166.76/x
  3. Step 3: Cross multiply
    424,649.50x = 637,072.68 × 144,166.76
  4. Step 4: Simplify right side
    424,649.50x = 91,844,704,160.12
  5. Step 5: Solve for x
    x = 91,844,704,160.12/424,649.50
  6. Step 6: Final answer
    x = 216,283.56

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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.