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Finding the Fourth Proportional to 118,373.87, 177,645.76 and 80,328.27

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Solution

The fourth proportional to 118,373.87, 177,645.76 and 80,328.27 is: 120,550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,373.87 : 177,645.76 = 80,328.27 : x
  2. Step 2: Convert to fraction form
    118,373.87/177,645.76 = 80,328.27/x
  3. Step 3: Cross multiply
    118,373.87x = 177,645.76 × 80,328.27
  4. Step 4: Simplify right side
    118,373.87x = 14,269,977,038.99
  5. Step 5: Solve for x
    x = 14,269,977,038.99/118,373.87
  6. Step 6: Final answer
    x = 120,550.06

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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.