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Finding the Fourth Proportional to 169,891.84, 234,445.78 and 93,410.86

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Solution

The fourth proportional to 169,891.84, 234,445.78 and 93,410.86 is: 128,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,891.84 : 234,445.78 = 93,410.86 : x
  2. Step 2: Convert to fraction form
    169,891.84/234,445.78 = 93,410.86/x
  3. Step 3: Cross multiply
    169,891.84x = 234,445.78 × 93,410.86
  4. Step 4: Simplify right side
    169,891.84x = 21,899,781,466.12
  5. Step 5: Solve for x
    x = 21,899,781,466.12/169,891.84
  6. Step 6: Final answer
    x = 128,904.26

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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.