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Finding the Fourth Proportional to 260,620.73, 359,690.49 and 145,943.04

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Solution

The fourth proportional to 260,620.73, 359,690.49 and 145,943.04 is: 201,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,620.73 : 359,690.49 = 145,943.04 : x
  2. Step 2: Convert to fraction form
    260,620.73/359,690.49 = 145,943.04/x
  3. Step 3: Cross multiply
    260,620.73x = 359,690.49 × 145,943.04
  4. Step 4: Simplify right side
    260,620.73x = 52,494,323,569.69
  5. Step 5: Solve for x
    x = 52,494,323,569.69/260,620.73
  6. Step 6: Final answer
    x = 201,420.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.