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Finding the Fourth Proportional to 74,722.52, 103,154.70 and 49,265.84

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Solution

The fourth proportional to 74,722.52, 103,154.70 and 49,265.84 is: 68,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.52 : 103,154.70 = 49,265.84 : x
  2. Step 2: Convert to fraction form
    74,722.52/103,154.70 = 49,265.84/x
  3. Step 3: Cross multiply
    74,722.52x = 103,154.70 × 49,265.84
  4. Step 4: Simplify right side
    74,722.52x = 5,082,002,945.45
  5. Step 5: Solve for x
    x = 5,082,002,945.45/74,722.52
  6. Step 6: Final answer
    x = 68,011.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.