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Finding the Fourth Proportional to 268,940.40, 371,133.66 and 160,120.68

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Solution

The fourth proportional to 268,940.40, 371,133.66 and 160,120.68 is: 220,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,940.40 : 371,133.66 = 160,120.68 : x
  2. Step 2: Convert to fraction form
    268,940.40/371,133.66 = 160,120.68/x
  3. Step 3: Cross multiply
    268,940.40x = 371,133.66 × 160,120.68
  4. Step 4: Simplify right side
    268,940.40x = 59,426,174,010.09
  5. Step 5: Solve for x
    x = 59,426,174,010.09/268,940.40
  6. Step 6: Final answer
    x = 220,964.10

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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.