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Finding the Fourth Proportional to 322,945.71, 484,104.28 and 154,422.51

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Solution

The fourth proportional to 322,945.71, 484,104.28 and 154,422.51 is: 231,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,945.71 : 484,104.28 = 154,422.51 : x
  2. Step 2: Convert to fraction form
    322,945.71/484,104.28 = 154,422.51/x
  3. Step 3: Cross multiply
    322,945.71x = 484,104.28 × 154,422.51
  4. Step 4: Simplify right side
    322,945.71x = 74,756,598,019.34
  5. Step 5: Solve for x
    x = 74,756,598,019.34/322,945.71
  6. Step 6: Final answer
    x = 231,483.48

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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.