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Finding the Fourth Proportional to 74,277.99, 111,429.27 and 36,839.28

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Solution

The fourth proportional to 74,277.99, 111,429.27 and 36,839.28 is: 55,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,277.99 : 111,429.27 = 36,839.28 : x
  2. Step 2: Convert to fraction form
    74,277.99/111,429.27 = 36,839.28/x
  3. Step 3: Cross multiply
    74,277.99x = 111,429.27 × 36,839.28
  4. Step 4: Simplify right side
    74,277.99x = 4,104,974,077.73
  5. Step 5: Solve for x
    x = 4,104,974,077.73/74,277.99
  6. Step 6: Final answer
    x = 55,265.01

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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.