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Finding the Fourth Proportional to 248,166.60, 372,249.90 and 123,491.40

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Solution

The fourth proportional to 248,166.60, 372,249.90 and 123,491.40 is: 185,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,166.60 : 372,249.90 = 123,491.40 : x
  2. Step 2: Convert to fraction form
    248,166.60/372,249.90 = 123,491.40/x
  3. Step 3: Cross multiply
    248,166.60x = 372,249.90 × 123,491.40
  4. Step 4: Simplify right side
    248,166.60x = 45,969,661,300.86
  5. Step 5: Solve for x
    x = 45,969,661,300.86/248,166.60
  6. Step 6: Final answer
    x = 185,237.10

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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.