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Finding the Fourth Proportional to 248,165.10, 372,249.88 and 70,672.03

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Solution

The fourth proportional to 248,165.10, 372,249.88 and 70,672.03 is: 106,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,165.10 : 372,249.88 = 70,672.03 : x
  2. Step 2: Convert to fraction form
    248,165.10/372,249.88 = 70,672.03/x
  3. Step 3: Cross multiply
    248,165.10x = 372,249.88 × 70,672.03
  4. Step 4: Simplify right side
    248,165.10x = 26,307,653,579.55
  5. Step 5: Solve for x
    x = 26,307,653,579.55/248,165.10
  6. Step 6: Final answer
    x = 106,008.68

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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.