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Finding the Fourth Proportional to 248,615.60, 372,923.40 and 108,647.60

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Solution

The fourth proportional to 248,615.60, 372,923.40 and 108,647.60 is: 162,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,615.60 : 372,923.40 = 108,647.60 : x
  2. Step 2: Convert to fraction form
    248,615.60/372,923.40 = 108,647.60/x
  3. Step 3: Cross multiply
    248,615.60x = 372,923.40 × 108,647.60
  4. Step 4: Simplify right side
    248,615.60x = 40,517,232,393.84
  5. Step 5: Solve for x
    x = 40,517,232,393.84/248,615.60
  6. Step 6: Final answer
    x = 162,971.40

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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.