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Finding the Fourth Proportional to 248,378.40, 372,358.62 and 108,031.32

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Solution

The fourth proportional to 248,378.40, 372,358.62 and 108,031.32 is: 161,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,378.40 : 372,358.62 = 108,031.32 : x
  2. Step 2: Convert to fraction form
    248,378.40/372,358.62 = 108,031.32/x
  3. Step 3: Cross multiply
    248,378.40x = 372,358.62 × 108,031.32
  4. Step 4: Simplify right side
    248,378.40x = 40,226,393,231.98
  5. Step 5: Solve for x
    x = 40,226,393,231.98/248,378.40
  6. Step 6: Final answer
    x = 161,956.08

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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.