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Finding the Fourth Proportional to 272,642.40, 376,255.48 and 150,147.84

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Solution

The fourth proportional to 272,642.40, 376,255.48 and 150,147.84 is: 207,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,642.40 : 376,255.48 = 150,147.84 : x
  2. Step 2: Convert to fraction form
    272,642.40/376,255.48 = 150,147.84/x
  3. Step 3: Cross multiply
    272,642.40x = 376,255.48 × 150,147.84
  4. Step 4: Simplify right side
    272,642.40x = 56,493,947,610.16
  5. Step 5: Solve for x
    x = 56,493,947,610.16/272,642.40
  6. Step 6: Final answer
    x = 207,208.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.