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Finding the Fourth Proportional to 424,861.08, 637,143.12 and 125,262.12

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Solution

The fourth proportional to 424,861.08, 637,143.12 and 125,262.12 is: 187,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,861.08 : 637,143.12 = 125,262.12 : x
  2. Step 2: Convert to fraction form
    424,861.08/637,143.12 = 125,262.12/x
  3. Step 3: Cross multiply
    424,861.08x = 637,143.12 × 125,262.12
  4. Step 4: Simplify right side
    424,861.08x = 79,809,897,954.61
  5. Step 5: Solve for x
    x = 79,809,897,954.61/424,861.08
  6. Step 6: Final answer
    x = 187,849.40

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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.