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Finding the Fourth Proportional to 143,092.60, 214,638.90 and 49,607.80

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Solution

The fourth proportional to 143,092.60, 214,638.90 and 49,607.80 is: 74,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,092.60 : 214,638.90 = 49,607.80 : x
  2. Step 2: Convert to fraction form
    143,092.60/214,638.90 = 49,607.80/x
  3. Step 3: Cross multiply
    143,092.60x = 214,638.90 × 49,607.80
  4. Step 4: Simplify right side
    143,092.60x = 10,647,763,623.42
  5. Step 5: Solve for x
    x = 10,647,763,623.42/143,092.60
  6. Step 6: Final answer
    x = 74,411.70

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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.