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Finding the Fourth Proportional to 267,186, 400,805.56 and 98,750.48

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Solution

The fourth proportional to 267,186, 400,805.56 and 98,750.48 is: 148,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,186 : 400,805.56 = 98,750.48 : x
  2. Step 2: Convert to fraction form
    267,186/400,805.56 = 98,750.48/x
  3. Step 3: Cross multiply
    267,186x = 400,805.56 × 98,750.48
  4. Step 4: Simplify right side
    267,186x = 39,579,741,436.67
  5. Step 5: Solve for x
    x = 39,579,741,436.67/267,186
  6. Step 6: Final answer
    x = 148,135.54

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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.