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Finding the Fourth Proportional to 424,810.62, 637,217.73 and 172,096.02

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Solution

The fourth proportional to 424,810.62, 637,217.73 and 172,096.02 is: 258,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,810.62 : 637,217.73 = 172,096.02 : x
  2. Step 2: Convert to fraction form
    424,810.62/637,217.73 = 172,096.02/x
  3. Step 3: Cross multiply
    424,810.62x = 637,217.73 × 172,096.02
  4. Step 4: Simplify right side
    424,810.62x = 109,662,635,206.44
  5. Step 5: Solve for x
    x = 109,662,635,206.44/424,810.62
  6. Step 6: Final answer
    x = 258,144.76

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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.