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Finding the Fourth Proportional to 173,615.52, 239,689.80 and 115,517.88

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Solution

The fourth proportional to 173,615.52, 239,689.80 and 115,517.88 is: 159,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,615.52 : 239,689.80 = 115,517.88 : x
  2. Step 2: Convert to fraction form
    173,615.52/239,689.80 = 115,517.88/x
  3. Step 3: Cross multiply
    173,615.52x = 239,689.80 × 115,517.88
  4. Step 4: Simplify right side
    173,615.52x = 27,688,457,553.62
  5. Step 5: Solve for x
    x = 27,688,457,553.62/173,615.52
  6. Step 6: Final answer
    x = 159,481.47

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1.5x scale

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.