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Finding the Fourth Proportional to 424,938.62, 637,446.89 and 109,396.54

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Solution

The fourth proportional to 424,938.62, 637,446.89 and 109,396.54 is: 164,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,938.62 : 637,446.89 = 109,396.54 : x
  2. Step 2: Convert to fraction form
    424,938.62/637,446.89 = 109,396.54/x
  3. Step 3: Cross multiply
    424,938.62x = 637,446.89 × 109,396.54
  4. Step 4: Simplify right side
    424,938.62x = 69,734,484,199.76
  5. Step 5: Solve for x
    x = 69,734,484,199.76/424,938.62
  6. Step 6: Final answer
    x = 164,104.84

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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.