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Finding the Fourth Proportional to 79,930.65, 119,895.96 and 23,770.53

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Solution

The fourth proportional to 79,930.65, 119,895.96 and 23,770.53 is: 35,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.65 : 119,895.96 = 23,770.53 : x
  2. Step 2: Convert to fraction form
    79,930.65/119,895.96 = 23,770.53/x
  3. Step 3: Cross multiply
    79,930.65x = 119,895.96 × 23,770.53
  4. Step 4: Simplify right side
    79,930.65x = 2,849,990,514.06
  5. Step 5: Solve for x
    x = 2,849,990,514.06/79,930.65
  6. Step 6: Final answer
    x = 35,655.79

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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.