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Finding the Fourth Proportional to 248,624.60, 372,936.90 and 209,258.60

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Solution

The fourth proportional to 248,624.60, 372,936.90 and 209,258.60 is: 313,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,624.60 : 372,936.90 = 209,258.60 : x
  2. Step 2: Convert to fraction form
    248,624.60/372,936.90 = 209,258.60/x
  3. Step 3: Cross multiply
    248,624.60x = 372,936.90 × 209,258.60
  4. Step 4: Simplify right side
    248,624.60x = 78,040,253,582.34
  5. Step 5: Solve for x
    x = 78,040,253,582.34/248,624.60
  6. Step 6: Final answer
    x = 313,887.90

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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.