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Finding the Fourth Proportional to 424,863.90, 637,076.34 and 125,306.34

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Solution

The fourth proportional to 424,863.90, 637,076.34 and 125,306.34 is: 187,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,863.90 : 637,076.34 = 125,306.34 : x
  2. Step 2: Convert to fraction form
    424,863.90/637,076.34 = 125,306.34/x
  3. Step 3: Cross multiply
    424,863.90x = 637,076.34 × 125,306.34
  4. Step 4: Simplify right side
    424,863.90x = 79,829,704,466.00
  5. Step 5: Solve for x
    x = 79,829,704,466.00/424,863.90
  6. Step 6: Final answer
    x = 187,894.77

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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.