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Finding the Fourth Proportional to 169,903.41, 234,472.73 and 93,428.33

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Solution

The fourth proportional to 169,903.41, 234,472.73 and 93,428.33 is: 128,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,903.41 : 234,472.73 = 93,428.33 : x
  2. Step 2: Convert to fraction form
    169,903.41/234,472.73 = 93,428.33/x
  3. Step 3: Cross multiply
    169,903.41x = 234,472.73 × 93,428.33
  4. Step 4: Simplify right side
    169,903.41x = 21,906,393,954.94
  5. Step 5: Solve for x
    x = 21,906,393,954.94/169,903.41
  6. Step 6: Final answer
    x = 128,934.40

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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.