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Finding the Fourth Proportional to 67,903.70, 101,855.55 and 49,471.70

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Solution

The fourth proportional to 67,903.70, 101,855.55 and 49,471.70 is: 74,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,903.70 : 101,855.55 = 49,471.70 : x
  2. Step 2: Convert to fraction form
    67,903.70/101,855.55 = 49,471.70/x
  3. Step 3: Cross multiply
    67,903.70x = 101,855.55 × 49,471.70
  4. Step 4: Simplify right side
    67,903.70x = 5,038,967,212.94
  5. Step 5: Solve for x
    x = 5,038,967,212.94/67,903.70
  6. Step 6: Final answer
    x = 74,207.55

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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.