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Finding the Fourth Proportional to 169,391.76, 233,770 and 93,938.64

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Solution

The fourth proportional to 169,391.76, 233,770 and 93,938.64 is: 129,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,391.76 : 233,770 = 93,938.64 : x
  2. Step 2: Convert to fraction form
    169,391.76/233,770 = 93,938.64/x
  3. Step 3: Cross multiply
    169,391.76x = 233,770 × 93,938.64
  4. Step 4: Simplify right side
    169,391.76x = 21,960,035,872.80
  5. Step 5: Solve for x
    x = 21,960,035,872.80/169,391.76
  6. Step 6: Final answer
    x = 129,640.52

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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.