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Finding the Fourth Proportional to 169,893.40, 234,432.48 and 93,399.88

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Solution

The fourth proportional to 169,893.40, 234,432.48 and 93,399.88 is: 128,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,893.40 : 234,432.48 = 93,399.88 : x
  2. Step 2: Convert to fraction form
    169,893.40/234,432.48 = 93,399.88/x
  3. Step 3: Cross multiply
    169,893.40x = 234,432.48 × 93,399.88
  4. Step 4: Simplify right side
    169,893.40x = 21,895,965,500.10
  5. Step 5: Solve for x
    x = 21,895,965,500.10/169,893.40
  6. Step 6: Final answer
    x = 128,880.61

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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.