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Finding the Fourth Proportional to 250,052.89, 375,091.44 and 81,572.89

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Solution

The fourth proportional to 250,052.89, 375,091.44 and 81,572.89 is: 122,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,052.89 : 375,091.44 = 81,572.89 : x
  2. Step 2: Convert to fraction form
    250,052.89/375,091.44 = 81,572.89/x
  3. Step 3: Cross multiply
    250,052.89x = 375,091.44 × 81,572.89
  4. Step 4: Simplify right side
    250,052.89x = 30,597,292,775.06
  5. Step 5: Solve for x
    x = 30,597,292,775.06/250,052.89
  6. Step 6: Final answer
    x = 122,363.28

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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.