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Finding the Fourth Proportional to 79,630.20, 119,438.10 and 27,041.40

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Solution

The fourth proportional to 79,630.20, 119,438.10 and 27,041.40 is: 40,559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,630.20 : 119,438.10 = 27,041.40 : x
  2. Step 2: Convert to fraction form
    79,630.20/119,438.10 = 27,041.40/x
  3. Step 3: Cross multiply
    79,630.20x = 119,438.10 × 27,041.40
  4. Step 4: Simplify right side
    79,630.20x = 3,229,773,437.34
  5. Step 5: Solve for x
    x = 3,229,773,437.34/79,630.20
  6. Step 6: Final answer
    x = 40,559.65

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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.