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Finding the Fourth Proportional to 260,355.11, 359,187.39 and 163,502

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Solution

The fourth proportional to 260,355.11, 359,187.39 and 163,502 is: 225,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,355.11 : 359,187.39 = 163,502 : x
  2. Step 2: Convert to fraction form
    260,355.11/359,187.39 = 163,502/x
  3. Step 3: Cross multiply
    260,355.11x = 359,187.39 × 163,502
  4. Step 4: Simplify right side
    260,355.11x = 58,727,856,639.78
  5. Step 5: Solve for x
    x = 58,727,856,639.78/260,355.11
  6. Step 6: Final answer
    x = 225,568.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.