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Finding the Fourth Proportional to 235,024.80, 352,731.60 and 108,859.20

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Solution

The fourth proportional to 235,024.80, 352,731.60 and 108,859.20 is: 163,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,024.80 : 352,731.60 = 108,859.20 : x
  2. Step 2: Convert to fraction form
    235,024.80/352,731.60 = 108,859.20/x
  3. Step 3: Cross multiply
    235,024.80x = 352,731.60 × 108,859.20
  4. Step 4: Simplify right side
    235,024.80x = 38,398,079,790.72
  5. Step 5: Solve for x
    x = 38,398,079,790.72/235,024.80
  6. Step 6: Final answer
    x = 163,378.84

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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.