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Finding the Fourth Proportional to 159,880.34, 220,636.62 and 88,260.41

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Solution

The fourth proportional to 159,880.34, 220,636.62 and 88,260.41 is: 121,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,880.34 : 220,636.62 = 88,260.41 : x
  2. Step 2: Convert to fraction form
    159,880.34/220,636.62 = 88,260.41/x
  3. Step 3: Cross multiply
    159,880.34x = 220,636.62 × 88,260.41
  4. Step 4: Simplify right side
    159,880.34x = 19,473,477,439.03
  5. Step 5: Solve for x
    x = 19,473,477,439.03/159,880.34
  6. Step 6: Final answer
    x = 121,800.33

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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.