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Finding the Fourth Proportional to 424,958.57, 637,289.30 and 125,359.64

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Solution

The fourth proportional to 424,958.57, 637,289.30 and 125,359.64 is: 187,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,958.57 : 637,289.30 = 125,359.64 : x
  2. Step 2: Convert to fraction form
    424,958.57/637,289.30 = 125,359.64/x
  3. Step 3: Cross multiply
    424,958.57x = 637,289.30 × 125,359.64
  4. Step 4: Simplify right side
    424,958.57x = 79,890,353,410.61
  5. Step 5: Solve for x
    x = 79,890,353,410.61/424,958.57
  6. Step 6: Final answer
    x = 187,995.63

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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.