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Finding the Fourth Proportional to 119,770.38, 179,671.95 and 40,863.42

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Solution

The fourth proportional to 119,770.38, 179,671.95 and 40,863.42 is: 61,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,770.38 : 179,671.95 = 40,863.42 : x
  2. Step 2: Convert to fraction form
    119,770.38/179,671.95 = 40,863.42/x
  3. Step 3: Cross multiply
    119,770.38x = 179,671.95 × 40,863.42
  4. Step 4: Simplify right side
    119,770.38x = 7,342,010,355.07
  5. Step 5: Solve for x
    x = 7,342,010,355.07/119,770.38
  6. Step 6: Final answer
    x = 61,300.72

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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.