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Finding the Fourth Proportional to 248,512.80, 372,817.80 and 98,727.60

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Solution

The fourth proportional to 248,512.80, 372,817.80 and 98,727.60 is: 148,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,512.80 : 372,817.80 = 98,727.60 : x
  2. Step 2: Convert to fraction form
    248,512.80/372,817.80 = 98,727.60/x
  3. Step 3: Cross multiply
    248,512.80x = 372,817.80 × 98,727.60
  4. Step 4: Simplify right side
    248,512.80x = 36,807,406,631.28
  5. Step 5: Solve for x
    x = 36,807,406,631.28/248,512.80
  6. Step 6: Final answer
    x = 148,110.71

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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.