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Finding the Fourth Proportional to 248,433.60, 372,698.40 and 106,276.80

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Solution

The fourth proportional to 248,433.60, 372,698.40 and 106,276.80 is: 159,435.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,433.60 : 372,698.40 = 106,276.80 : x
  2. Step 2: Convert to fraction form
    248,433.60/372,698.40 = 106,276.80/x
  3. Step 3: Cross multiply
    248,433.60x = 372,698.40 × 106,276.80
  4. Step 4: Simplify right side
    248,433.60x = 39,609,193,317.12
  5. Step 5: Solve for x
    x = 39,609,193,317.12/248,433.60
  6. Step 6: Final answer
    x = 159,435.73

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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.