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Finding the Fourth Proportional to 268,549.94, 370,591.49 and 147,691.20

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Solution

The fourth proportional to 268,549.94, 370,591.49 and 147,691.20 is: 203,809.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,549.94 : 370,591.49 = 147,691.20 : x
  2. Step 2: Convert to fraction form
    268,549.94/370,591.49 = 147,691.20/x
  3. Step 3: Cross multiply
    268,549.94x = 370,591.49 × 147,691.20
  4. Step 4: Simplify right side
    268,549.94x = 54,733,101,129.43
  5. Step 5: Solve for x
    x = 54,733,101,129.43/268,549.94
  6. Step 6: Final answer
    x = 203,809.77

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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.