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Finding the Fourth Proportional to 268,689.64, 370,791.66 and 147,828.28

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Solution

The fourth proportional to 268,689.64, 370,791.66 and 147,828.28 is: 204,003.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,689.64 : 370,791.66 = 147,828.28 : x
  2. Step 2: Convert to fraction form
    268,689.64/370,791.66 = 147,828.28/x
  3. Step 3: Cross multiply
    268,689.64x = 370,791.66 × 147,828.28
  4. Step 4: Simplify right side
    268,689.64x = 54,813,493,336.14
  5. Step 5: Solve for x
    x = 54,813,493,336.14/268,689.64
  6. Step 6: Final answer
    x = 204,003.00

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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.