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Finding the Fourth Proportional to 169,911.14, 234,472.41 and 93,430.16

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Solution

The fourth proportional to 169,911.14, 234,472.41 and 93,430.16 is: 128,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,911.14 : 234,472.41 = 93,430.16 : x
  2. Step 2: Convert to fraction form
    169,911.14/234,472.41 = 93,430.16/x
  3. Step 3: Cross multiply
    169,911.14x = 234,472.41 × 93,430.16
  4. Step 4: Simplify right side
    169,911.14x = 21,906,793,609.52
  5. Step 5: Solve for x
    x = 21,906,793,609.52/169,911.14
  6. Step 6: Final answer
    x = 128,930.88

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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.