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Finding the Fourth Proportional to 162,757.80, 244,136.70 and 84,025.80

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Solution

The fourth proportional to 162,757.80, 244,136.70 and 84,025.80 is: 126,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,757.80 : 244,136.70 = 84,025.80 : x
  2. Step 2: Convert to fraction form
    162,757.80/244,136.70 = 84,025.80/x
  3. Step 3: Cross multiply
    162,757.80x = 244,136.70 × 84,025.80
  4. Step 4: Simplify right side
    162,757.80x = 20,513,781,526.86
  5. Step 5: Solve for x
    x = 20,513,781,526.86/162,757.80
  6. Step 6: Final answer
    x = 126,038.70

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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.