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Finding the Fourth Proportional to 92,468.77, 138,704.09 and 29,287.69

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Solution

The fourth proportional to 92,468.77, 138,704.09 and 29,287.69 is: 43,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,468.77 : 138,704.09 = 29,287.69 : x
  2. Step 2: Convert to fraction form
    92,468.77/138,704.09 = 29,287.69/x
  3. Step 3: Cross multiply
    92,468.77x = 138,704.09 × 29,287.69
  4. Step 4: Simplify right side
    92,468.77x = 4,062,322,416.59
  5. Step 5: Solve for x
    x = 4,062,322,416.59/92,468.77
  6. Step 6: Final answer
    x = 43,931.83

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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.