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Finding the Fourth Proportional to 268,935.70, 371,128.26 and 148,074.52

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Solution

The fourth proportional to 268,935.70, 371,128.26 and 148,074.52 is: 204,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,935.70 : 371,128.26 = 148,074.52 : x
  2. Step 2: Convert to fraction form
    268,935.70/371,128.26 = 148,074.52/x
  3. Step 3: Cross multiply
    268,935.70x = 371,128.26 × 148,074.52
  4. Step 4: Simplify right side
    268,935.70x = 54,954,638,957.94
  5. Step 5: Solve for x
    x = 54,954,638,957.94/268,935.70
  6. Step 6: Final answer
    x = 204,341.18

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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.