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Finding the Fourth Proportional to 330,483.88, 495,695.42 and 108,867.88

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Solution

The fourth proportional to 330,483.88, 495,695.42 and 108,867.88 is: 163,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,483.88 : 495,695.42 = 108,867.88 : x
  2. Step 2: Convert to fraction form
    330,483.88/495,695.42 = 108,867.88/x
  3. Step 3: Cross multiply
    330,483.88x = 495,695.42 × 108,867.88
  4. Step 4: Simplify right side
    330,483.88x = 53,965,309,501.11
  5. Step 5: Solve for x
    x = 53,965,309,501.11/330,483.88
  6. Step 6: Final answer
    x = 163,291.81

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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.