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Finding the Fourth Proportional to 262,810.80, 394,129.80 and 96,577.20

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Solution

The fourth proportional to 262,810.80, 394,129.80 and 96,577.20 is: 144,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,810.80 : 394,129.80 = 96,577.20 : x
  2. Step 2: Convert to fraction form
    262,810.80/394,129.80 = 96,577.20/x
  3. Step 3: Cross multiply
    262,810.80x = 394,129.80 × 96,577.20
  4. Step 4: Simplify right side
    262,810.80x = 38,063,952,520.56
  5. Step 5: Solve for x
    x = 38,063,952,520.56/262,810.80
  6. Step 6: Final answer
    x = 144,834.05

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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.