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Finding the Fourth Proportional to 260,376.67, 359,302.83 and 145,635.43

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Solution

The fourth proportional to 260,376.67, 359,302.83 and 145,635.43 is: 200,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,376.67 : 359,302.83 = 145,635.43 : x
  2. Step 2: Convert to fraction form
    260,376.67/359,302.83 = 145,635.43/x
  3. Step 3: Cross multiply
    260,376.67x = 359,302.83 × 145,635.43
  4. Step 4: Simplify right side
    260,376.67x = 52,327,222,147.27
  5. Step 5: Solve for x
    x = 52,327,222,147.27/260,376.67
  6. Step 6: Final answer
    x = 200,967.40

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1.5x scale

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.