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Finding the Fourth Proportional to 169,874.70, 234,428.67 and 93,394.34

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Solution

The fourth proportional to 169,874.70, 234,428.67 and 93,394.34 is: 128,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,874.70 : 234,428.67 = 93,394.34 : x
  2. Step 2: Convert to fraction form
    169,874.70/234,428.67 = 93,394.34/x
  3. Step 3: Cross multiply
    169,874.70x = 234,428.67 × 93,394.34
  4. Step 4: Simplify right side
    169,874.70x = 21,894,309,739.58
  5. Step 5: Solve for x
    x = 21,894,309,739.58/169,874.70
  6. Step 6: Final answer
    x = 128,885.05

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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.