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Finding the Fourth Proportional to 72,341.67, 108,515.84 and 34,933.21

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Solution

The fourth proportional to 72,341.67, 108,515.84 and 34,933.21 is: 52,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341.67 : 108,515.84 = 34,933.21 : x
  2. Step 2: Convert to fraction form
    72,341.67/108,515.84 = 34,933.21/x
  3. Step 3: Cross multiply
    72,341.67x = 108,515.84 × 34,933.21
  4. Step 4: Simplify right side
    72,341.67x = 3,790,806,181.09
  5. Step 5: Solve for x
    x = 3,790,806,181.09/72,341.67
  6. Step 6: Final answer
    x = 52,401.42

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1.5x scale

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.