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Finding the Fourth Proportional to 94,638.40, 141,806.40 and 50,207.20

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Solution

The fourth proportional to 94,638.40, 141,806.40 and 50,207.20 is: 75,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,638.40 : 141,806.40 = 50,207.20 : x
  2. Step 2: Convert to fraction form
    94,638.40/141,806.40 = 50,207.20/x
  3. Step 3: Cross multiply
    94,638.40x = 141,806.40 × 50,207.20
  4. Step 4: Simplify right side
    94,638.40x = 7,119,702,286.08
  5. Step 5: Solve for x
    x = 7,119,702,286.08/94,638.40
  6. Step 6: Final answer
    x = 75,230.59

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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.