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Finding the Fourth Proportional to 50,817.57, 70,130.85 and 30,674.19

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Solution

The fourth proportional to 50,817.57, 70,130.85 and 30,674.19 is: 42,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,817.57 : 70,130.85 = 30,674.19 : x
  2. Step 2: Convert to fraction form
    50,817.57/70,130.85 = 30,674.19/x
  3. Step 3: Cross multiply
    50,817.57x = 70,130.85 × 30,674.19
  4. Step 4: Simplify right side
    50,817.57x = 2,151,207,017.76
  5. Step 5: Solve for x
    x = 2,151,207,017.76/50,817.57
  6. Step 6: Final answer
    x = 42,331.95

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