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Finding the Fourth Proportional to 268,268.70, 402,744.50 and 173,893.81

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Solution

The fourth proportional to 268,268.70, 402,744.50 and 173,893.81 is: 261,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,268.70 : 402,744.50 = 173,893.81 : x
  2. Step 2: Convert to fraction form
    268,268.70/402,744.50 = 173,893.81/x
  3. Step 3: Cross multiply
    268,268.70x = 402,744.50 × 173,893.81
  4. Step 4: Simplify right side
    268,268.70x = 70,034,775,561.55
  5. Step 5: Solve for x
    x = 70,034,775,561.55/268,268.70
  6. Step 6: Final answer
    x = 261,062.05

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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.