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Finding the Fourth Proportional to 250,406.55, 375,610.50 and 72,917.91

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Solution

The fourth proportional to 250,406.55, 375,610.50 and 72,917.91 is: 109,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,406.55 : 375,610.50 = 72,917.91 : x
  2. Step 2: Convert to fraction form
    250,406.55/375,610.50 = 72,917.91/x
  3. Step 3: Cross multiply
    250,406.55x = 375,610.50 × 72,917.91
  4. Step 4: Simplify right side
    250,406.55x = 27,388,732,634.06
  5. Step 5: Solve for x
    x = 27,388,732,634.06/250,406.55
  6. Step 6: Final answer
    x = 109,377.06

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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.