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Finding the Fourth Proportional to 67,265.88, 100,898.80 and 31,238.68

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Solution

The fourth proportional to 67,265.88, 100,898.80 and 31,238.68 is: 46,858.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,265.88 : 100,898.80 = 31,238.68 : x
  2. Step 2: Convert to fraction form
    67,265.88/100,898.80 = 31,238.68/x
  3. Step 3: Cross multiply
    67,265.88x = 100,898.80 × 31,238.68
  4. Step 4: Simplify right side
    67,265.88x = 3,151,945,325.58
  5. Step 5: Solve for x
    x = 3,151,945,325.58/67,265.88
  6. Step 6: Final answer
    x = 46,858.01

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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.