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Finding the Fourth Proportional to 34,158.40, 51,140.40 and 33,186.40

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Solution

The fourth proportional to 34,158.40, 51,140.40 and 33,186.40 is: 49,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,158.40 : 51,140.40 = 33,186.40 : x
  2. Step 2: Convert to fraction form
    34,158.40/51,140.40 = 33,186.40/x
  3. Step 3: Cross multiply
    34,158.40x = 51,140.40 × 33,186.40
  4. Step 4: Simplify right side
    34,158.40x = 1,697,165,770.56
  5. Step 5: Solve for x
    x = 1,697,165,770.56/34,158.40
  6. Step 6: Final answer
    x = 49,685.17

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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.