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Finding the Fourth Proportional to 248,609.40, 372,914.10 and 61,620.90

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Solution

The fourth proportional to 248,609.40, 372,914.10 and 61,620.90 is: 92,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,609.40 : 372,914.10 = 61,620.90 : x
  2. Step 2: Convert to fraction form
    248,609.40/372,914.10 = 61,620.90/x
  3. Step 3: Cross multiply
    248,609.40x = 372,914.10 × 61,620.90
  4. Step 4: Simplify right side
    248,609.40x = 22,979,302,464.69
  5. Step 5: Solve for x
    x = 22,979,302,464.69/248,609.40
  6. Step 6: Final answer
    x = 92,431.35

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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.