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Finding the Fourth Proportional to 183,963.40, 275,799.30 and 100,857.40

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Solution

The fourth proportional to 183,963.40, 275,799.30 and 100,857.40 is: 151,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,963.40 : 275,799.30 = 100,857.40 : x
  2. Step 2: Convert to fraction form
    183,963.40/275,799.30 = 100,857.40/x
  3. Step 3: Cross multiply
    183,963.40x = 275,799.30 × 100,857.40
  4. Step 4: Simplify right side
    183,963.40x = 27,816,400,319.82
  5. Step 5: Solve for x
    x = 27,816,400,319.82/183,963.40
  6. Step 6: Final answer
    x = 151,206.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.